HVAC Error Codes
HVAC system error codes and troubleshooting guides.
Decode error messages from your HVAC system. Find what the error means, likely causes, and safe troubleshooting steps for Carrier, Trane, Lennox, Rheem, Goodman, York, and Daikin systems.
HVAC Error Codes
E1 – Room temperature sensor fault
Room temperature sensor error detected
HVAC Error Codes
E2 – Outdoor temperature sensor fault
Outdoor temperature sensor error detected
HVAC Error Codes
E3 – Coil temperature sensor fault
Coil temperature sensor error detected
HVAC Error Codes
E4 – High pressure switch fault
High pressure switch activated
HVAC Error Codes
E5 – Low pressure switch fault
Low pressure switch activated
HVAC Error Codes
E6 – Compressor overload
Compressor overload protection activated
HVAC Error Codes
E7 – Communication error
Communication error between components
HVAC Error Codes
E8 – Defrost sensor fault
Defrost sensor error detected
HVAC Error Codes
E9 – Reversing valve fault
Reversing valve error detected
HVAC Error Codes
EE – System error
System error detected
HVAC Error Codes
CH – Check filter
Filter needs to be checked or replaced
HVAC Error Codes
FL – Filter lockout
Filter lockout activated due to dirty filter
HVAC Error Codes
PF – Power failure
Power failure detected
HVAC Error Codes
PR – Pressure switch fault
Pressure switch error detected
HVAC Error Codes
PS – Pressure switch open
Pressure switch is open
HVAC Error Codes
RC – Refrigerant charge
Refrigerant charge issue detected
HVAC Error Codes
SC – Short cycle
Short cycling detected
HVAC Error Codes
SH – Sensor high
Sensor reading high
HVAC Error Codes
SL – Sensor low
Sensor reading low
HVAC Error Codes
TS – Temperature sensor fault
Temperature sensor error detected
HVAC Error Codes
E1 – Communication error
Communication error between components
HVAC Error Codes
E2 – High pressure switch
High pressure switch activated
HVAC Error Codes
E3 – Low pressure switch
Low pressure switch activated
HVAC Error Codes
E4 – Compressor overload
Compressor overload protection activated
HVAC Error Codes
E5 – Room temperature sensor
Room temperature sensor fault
HVAC Error Codes
E6 – Outdoor temperature sensor
Outdoor temperature sensor fault
HVAC Error Codes
E7 – Coil temperature sensor
Coil temperature sensor fault
HVAC Error Codes
E8 – Defrost sensor
Defrost sensor fault
HVAC Error Codes
E9 – Reversing valve
Reversing valve fault
HVAC Error Codes
EE – System error
System error detected
HVAC Error Codes
Carrier F0 Error
Invalid configuration
HVAC Error Codes
Carrier F1 Error
Lockout due to repeated safety switch trips
HVAC Error Codes
Trane E1 Error
Indoor air temperature sensor fault
HVAC Error Codes
Trane E2 Error
Outdoor air temperature sensor fault
HVAC Error Codes
Trane E3 Error
Indoor coil temperature sensor fault
HVAC Error Codes
Trane E4 Error
Outdoor coil temperature sensor fault
HVAC Error Codes
Trane E5 Error
High pressure switch open
HVAC Error Codes
Trane E6 Error
Low pressure switch open
HVAC Error Codes
Trane F1 Error
Communication error with outdoor unit
HVAC Error Codes
Trane F2 Error
Low outdoor ambient temperature lockout
HVAC Error Codes
Rheem E1 Error
Room temperature sensor fault
HVAC Error Codes
Rheem E2 Error
Coil temperature sensor fault
HVAC Error Codes
Rheem E3 Error
Outdoor temperature sensor fault
HVAC Error Codes
Rheem E4 Error
High pressure switch open
HVAC Error Codes
Rheem E5 Error
Low pressure switch open
HVAC Error Codes
Rheem E6 Error
Communication error
HVAC Error Codes
Goodman E1 Error
Indoor temperature sensor fault
HVAC Error Codes
Goodman E2 Error
Outdoor temperature sensor fault
HVAC Error Codes
Goodman E3 Error
High pressure switch open
HVAC Error Codes
Goodman E4 Error
Low pressure switch open
HVAC Error Codes
Goodman E5 Error
Indoor coil freeze protection
HVAC Error Codes
York E1 Error
Room temperature sensor fault
HVAC Error Codes
York E2 Error
Outdoor temperature sensor fault
HVAC Error Codes
York E3 Error
High pressure switch open
HVAC Error Codes
York E4 Error
Low pressure switch open
HVAC Error Codes
Daikin E1 Error
Indoor unit communication error
HVAC Error Codes
Daikin E2 Error
Outdoor unit communication error
HVAC Error Codes
Daikin E3 Error
High pressure switch open
HVAC Error Codes
Daikin E4 Error
Low pressure switch open
HVAC Error Codes
Daikin E5 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier F10 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier F11 Error
High pressure switch open
HVAC Error Codes
Carrier F12 Error
Low pressure switch open
HVAC Error Codes
Carrier F13 Error
Communication error
HVAC Error Codes
Carrier F14 Error
Indoor coil freeze protection
HVAC Error Codes
Carrier F15 Error
Compressor overload
HVAC Error Codes
Carrier F16 Error
High discharge temperature
HVAC Error Codes
Carrier F17 Error
Defrost timeout
HVAC Error Codes
Carrier F18 Error
Indoor temperature sensor fault
HVAC Error Codes
Carrier F19 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier F20 Error
High pressure switch open
HVAC Error Codes
Carrier E21 Error
Low pressure switch open
HVAC Error Codes
Carrier E22 Error
Communication error
HVAC Error Codes
Carrier E23 Error
Indoor coil freeze protection
HVAC Error Codes
Carrier E24 Error
Compressor overload
HVAC Error Codes
Carrier E25 Error
High discharge temperature
HVAC Error Codes
Carrier E26 Error
Defrost timeout
HVAC Error Codes
Carrier E27 Error
Indoor temperature sensor fault
HVAC Error Codes
Carrier E28 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier E29 Error
High pressure switch open
HVAC Error Codes
Carrier E30 Error
Low pressure switch open
HVAC Error Codes
Carrier E31 Error
Communication error
HVAC Error Codes
Carrier E32 Error
Indoor coil freeze protection
HVAC Error Codes
Carrier E33 Error
Compressor overload
HVAC Error Codes
Carrier E34 Error
High discharge temperature
HVAC Error Codes
Carrier E35 Error
Defrost timeout
HVAC Error Codes
Carrier E36 Error
Indoor temperature sensor fault
HVAC Error Codes
Carrier E37 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier E38 Error
High pressure switch open
HVAC Error Codes
Carrier E39 Error
Low pressure switch open
HVAC Error Codes
Carrier E40 Error
Communication error
HVAC Error Codes
Carrier E41 Error
Indoor coil freeze protection
HVAC Error Codes
Carrier E42 Error
Compressor overload
HVAC Error Codes
Carrier E43 Error
High discharge temperature
HVAC Error Codes
Carrier E44 Error
Defrost timeout
HVAC Error Codes
Carrier E45 Error
Indoor temperature sensor fault
HVAC Error Codes
Carrier E46 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier E47 Error
High pressure switch open
HVAC Error Codes
Carrier E48 Error
Low pressure switch open
HVAC Error Codes
Carrier E49 Error
Communication error
HVAC Error Codes
Carrier E50 Error
Indoor coil freeze protection
HVAC Error Codes
Carrier E51 Error
Compressor overload
HVAC Error Codes
Carrier E52 Error
High discharge temperature
HVAC Error Codes
Carrier E53 Error
Defrost timeout
HVAC Error Codes
Carrier E54 Error
Indoor temperature sensor fault
HVAC Error Codes
Carrier E55 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier E56 Error
High pressure switch open
HVAC Error Codes
Carrier E57 Error
Low pressure switch open
HVAC Error Codes
Carrier E58 Error
Communication error
HVAC Error Codes
Carrier E59 Error
Indoor coil freeze protection
HVAC Error Codes
Carrier E60 Error
Compressor overload
HVAC Error Codes
Carrier E61 Error
High discharge temperature
HVAC Error Codes
Carrier E62 Error
Defrost timeout
HVAC Error Codes
Carrier E63 Error
Indoor temperature sensor fault
HVAC Error Codes
Carrier E64 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier E65 Error
High pressure switch open
HVAC Error Codes
Carrier E66 Error
Low pressure switch open
HVAC Error Codes
Carrier E67 Error
Communication error
HVAC Error Codes
Carrier E68 Error
Indoor coil freeze protection
HVAC Error Codes
Carrier E69 Error
Compressor overload
HVAC Error Codes
Carrier E70 Error
High discharge temperature
HVAC Error Codes
Carrier E71 Error
Defrost timeout
HVAC Error Codes
Carrier E72 Error
Indoor temperature sensor fault
HVAC Error Codes
Carrier E73 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier E74 Error
High pressure switch open
HVAC Error Codes
Carrier E75 Error
Low pressure switch open
HVAC Error Codes
Carrier E76 Error
Communication error
HVAC Error Codes
Carrier E77 Error
Indoor coil freeze protection
HVAC Error Codes
Carrier E78 Error
Compressor overload
HVAC Error Codes
Carrier E79 Error
High discharge temperature
HVAC Error Codes
Carrier E80 Error
Defrost timeout
HVAC Error Codes
Carrier E81 Error
Indoor temperature sensor fault
HVAC Error Codes
Carrier E82 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier E83 Error
High pressure switch open
HVAC Error Codes
Carrier E84 Error
Low pressure switch open
HVAC Error Codes
Carrier E85 Error
Communication error
HVAC Error Codes
Carrier E86 Error
Indoor coil freeze protection
HVAC Error Codes
Carrier E87 Error
Compressor overload
HVAC Error Codes
Carrier E88 Error
High discharge temperature
HVAC Error Codes
Carrier E89 Error
Defrost timeout
HVAC Error Codes
Carrier E90 Error
Indoor temperature sensor fault
HVAC Error Codes
Carrier E91 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier E92 Error
High pressure switch open
HVAC Error Codes
Carrier E93 Error
Low pressure switch open
HVAC Error Codes
Carrier E94 Error
Communication error
HVAC Error Codes
Carrier E95 Error
Indoor coil freeze protection
HVAC Error Codes
Carrier E96 Error
Compressor overload
HVAC Error Codes
Carrier E97 Error
High discharge temperature
HVAC Error Codes
Carrier E98 Error
Defrost timeout
HVAC Error Codes
Carrier E99 Error
Indoor temperature sensor fault
HVAC Error Codes
Carrier E100 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier E101 Error
High pressure switch open
HVAC Error Codes
Carrier E102 Error
Low pressure switch open
HVAC Error Codes
Carrier E103 Error
Communication error
HVAC Error Codes
Carrier E104 Error
Indoor coil freeze protection
HVAC Error Codes
Carrier E105 Error
Compressor overload
HVAC Error Codes
Carrier E106 Error
High discharge temperature
HVAC Error Codes
Carrier E107 Error
Defrost timeout
HVAC Error Codes
Carrier E108 Error
Indoor temperature sensor fault
HVAC Error Codes
Carrier E109 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier E110 Error
High pressure switch open
HVAC Error Codes
Carrier E111 Error
Low pressure switch open
HVAC Error Codes
Carrier E112 Error
Communication error
HVAC Error Codes
Carrier E113 Error
Indoor coil freeze protection
HVAC Error Codes
Carrier E114 Error
Compressor overload
HVAC Error Codes
Carrier E115 Error
High discharge temperature
HVAC Error Codes
Carrier E116 Error
Defrost timeout
HVAC Error Codes
Carrier E117 Error
Indoor temperature sensor fault
HVAC Error Codes
Carrier E118 Error
Outdoor temperature sensor fault
HVAC Error Codes
Carrier E119 Error
High pressure switch open
HVAC Error Codes
Carrier E120 Error
Low pressure switch open
HVAC Error Codes
Trane E7 Error
Compressor overload
HVAC Error Codes
Trane E8 Error
High discharge temperature
HVAC Error Codes
Trane E9 Error
Defrost timeout
HVAC Error Codes
Trane F10 Error
Outdoor temperature sensor fault
HVAC Error Codes
Trane F11 Error
High pressure switch open
HVAC Error Codes
Trane F12 Error
Low pressure switch open
HVAC Error Codes
Trane F13 Error
Communication error
HVAC Error Codes
Trane F14 Error
Indoor coil freeze protection
HVAC Error Codes
Trane F15 Error
Compressor overload
HVAC Error Codes
Trane F16 Error
High discharge temperature
HVAC Error Codes
Trane F17 Error
Defrost timeout
HVAC Error Codes
Trane F18 Error
Indoor temperature sensor fault
HVAC Error Codes
Trane F19 Error
Outdoor temperature sensor fault
HVAC Error Codes
Trane F20 Error
High pressure switch open
HVAC Error Codes
Trane E21 Error
Low pressure switch open
HVAC Error Codes
Trane E22 Error
Communication error
HVAC Error Codes
Trane E23 Error
Indoor coil freeze protection
HVAC Error Codes
Trane E24 Error
Compressor overload
HVAC Error Codes
Trane E25 Error
High discharge temperature
HVAC Error Codes
Trane E26 Error
Defrost timeout
HVAC Error Codes
Trane E27 Error
Indoor temperature sensor fault
HVAC Error Codes
Trane E28 Error
Outdoor temperature sensor fault
HVAC Error Codes
Trane E29 Error
High pressure switch open
HVAC Error Codes
Trane E30 Error
Low pressure switch open
HVAC Error Codes
Trane E31 Error
Communication error
HVAC Error Codes
Trane E32 Error
Indoor coil freeze protection
HVAC Error Codes
Trane E33 Error
Compressor overload
HVAC Error Codes
Trane E34 Error
High discharge temperature
HVAC Error Codes
Trane E35 Error
Defrost timeout
HVAC Error Codes
Trane E36 Error
Indoor temperature sensor fault
HVAC Error Codes
Trane E37 Error
Outdoor temperature sensor fault
HVAC Error Codes
Trane E38 Error
High pressure switch open
HVAC Error Codes
Trane E39 Error
Low pressure switch open
HVAC Error Codes
Trane E40 Error
Communication error
HVAC Error Codes
Trane E41 Error
Indoor coil freeze protection
HVAC Error Codes
Trane E42 Error
Compressor overload
HVAC Error Codes
Trane E43 Error
High discharge temperature
HVAC Error Codes
Trane E44 Error
Defrost timeout
HVAC Error Codes
Trane E45 Error
Indoor temperature sensor fault
HVAC Error Codes
Trane E46 Error
Outdoor temperature sensor fault
HVAC Error Codes
Trane E47 Error
High pressure switch open
HVAC Error Codes
Trane E48 Error
Low pressure switch open
HVAC Error Codes
Trane E49 Error
Communication error
HVAC Error Codes
Trane E50 Error
Indoor coil freeze protection
HVAC Error Codes
Trane E51 Error
Compressor overload
HVAC Error Codes
Trane E52 Error
High discharge temperature
HVAC Error Codes
Trane E53 Error
Defrost timeout
HVAC Error Codes
Trane E54 Error
Indoor temperature sensor fault
HVAC Error Codes
Trane E55 Error
Outdoor temperature sensor fault
HVAC Error Codes
Trane E56 Error
High pressure switch open
HVAC Error Codes
Trane E57 Error
Low pressure switch open
HVAC Error Codes
Trane E58 Error
Communication error
HVAC Error Codes
Trane E59 Error
Indoor coil freeze protection
HVAC Error Codes
Trane E60 Error
Compressor overload
HVAC Error Codes
Trane E61 Error
High discharge temperature
HVAC Error Codes
Trane E62 Error
Defrost timeout
HVAC Error Codes
Trane E63 Error
Indoor temperature sensor fault
HVAC Error Codes
Trane E64 Error
Outdoor temperature sensor fault
HVAC Error Codes
Trane E65 Error
High pressure switch open
HVAC Error Codes
Trane E66 Error
Low pressure switch open
HVAC Error Codes
Trane E67 Error
Communication error
HVAC Error Codes
Trane E68 Error
Indoor coil freeze protection
HVAC Error Codes
Trane E69 Error
Compressor overload
HVAC Error Codes
Trane E70 Error
High discharge temperature
HVAC Error Codes
Trane E71 Error
Defrost timeout
HVAC Error Codes
Trane E72 Error
Indoor temperature sensor fault
HVAC Error Codes
Trane E73 Error
Outdoor temperature sensor fault
HVAC Error Codes
Trane E74 Error
High pressure switch open
HVAC Error Codes
Trane E75 Error
Low pressure switch open
HVAC Error Codes
Trane E76 Error
Communication error
HVAC Error Codes
Trane E77 Error
Indoor coil freeze protection
HVAC Error Codes
Trane E78 Error
Compressor overload
HVAC Error Codes
Trane E79 Error
High discharge temperature
HVAC Error Codes
Trane E80 Error
Defrost timeout
HVAC Error Codes
Trane E81 Error
Indoor temperature sensor fault
HVAC Error Codes
Trane E82 Error
Outdoor temperature sensor fault
HVAC Error Codes
Trane E83 Error
High pressure switch open
HVAC Error Codes
Trane E84 Error
Low pressure switch open
HVAC Error Codes
Trane E85 Error
Communication error
HVAC Error Codes
Trane E86 Error
Indoor coil freeze protection
HVAC Error Codes
Trane E87 Error
Compressor overload
HVAC Error Codes
Trane E88 Error
High discharge temperature
HVAC Error Codes
Trane E89 Error
Defrost timeout
HVAC Error Codes
Trane E90 Error
Indoor temperature sensor fault
HVAC Error Codes
Trane E91 Error
Outdoor temperature sensor fault
HVAC Error Codes
Trane E92 Error
High pressure switch open
HVAC Error Codes
Trane E93 Error
Low pressure switch open
HVAC Error Codes
Trane E94 Error
Communication error
HVAC Error Codes
Trane E95 Error
Indoor coil freeze protection
HVAC Error Codes
Trane E96 Error
Compressor overload
HVAC Error Codes
Trane E97 Error
High discharge temperature
HVAC Error Codes
Trane E98 Error
Defrost timeout
HVAC Error Codes
Trane E99 Error
Indoor temperature sensor fault
HVAC Error Codes
Trane E100 Error
Outdoor temperature sensor fault
HVAC Error Codes
Lennox F10 Error
Outdoor temperature sensor fault
HVAC Error Codes
Lennox F11 Error
High pressure switch open
HVAC Error Codes
Lennox F12 Error
Low pressure switch open
HVAC Error Codes
Lennox F13 Error
Communication error
HVAC Error Codes
Lennox F14 Error
Indoor coil freeze protection
HVAC Error Codes
Lennox F15 Error
Compressor overload
HVAC Error Codes
Lennox F16 Error
High discharge temperature
HVAC Error Codes
Lennox F17 Error
Defrost timeout
HVAC Error Codes
Lennox F18 Error
Indoor temperature sensor fault
HVAC Error Codes
Lennox F19 Error
Outdoor temperature sensor fault
HVAC Error Codes
Lennox F20 Error
High pressure switch open
HVAC Error Codes
Lennox E21 Error
Low pressure switch open
HVAC Error Codes
Lennox E22 Error
Communication error
HVAC Error Codes
Lennox E23 Error
Indoor coil freeze protection
HVAC Error Codes
Lennox E24 Error
Compressor overload
HVAC Error Codes
Lennox E25 Error
High discharge temperature
HVAC Error Codes
Lennox E26 Error
Defrost timeout
HVAC Error Codes
Lennox E27 Error
Indoor temperature sensor fault
HVAC Error Codes
Lennox E28 Error
Outdoor temperature sensor fault
HVAC Error Codes
Lennox E29 Error
High pressure switch open
HVAC Error Codes
Lennox E30 Error
Low pressure switch open
HVAC Error Codes
Lennox E31 Error
Communication error
HVAC Error Codes
Lennox E32 Error
Indoor coil freeze protection
HVAC Error Codes
Lennox E33 Error
Compressor overload
HVAC Error Codes
Lennox E34 Error
High discharge temperature
HVAC Error Codes
Lennox E35 Error
Defrost timeout
HVAC Error Codes
Lennox E36 Error
Indoor temperature sensor fault
HVAC Error Codes
Lennox E37 Error
Outdoor temperature sensor fault
HVAC Error Codes
Lennox E38 Error
High pressure switch open
HVAC Error Codes
Lennox E39 Error
Low pressure switch open
HVAC Error Codes
Lennox E40 Error
Communication error
HVAC Error Codes
Lennox E41 Error
Indoor coil freeze protection
HVAC Error Codes
Lennox E42 Error
Compressor overload
HVAC Error Codes
Lennox E43 Error
High discharge temperature
HVAC Error Codes
Lennox E44 Error
Defrost timeout
HVAC Error Codes
Lennox E45 Error
Indoor temperature sensor fault
HVAC Error Codes
Lennox E46 Error
Outdoor temperature sensor fault
HVAC Error Codes
Lennox E47 Error
High pressure switch open
HVAC Error Codes
Lennox E48 Error
Low pressure switch open
HVAC Error Codes
Lennox E49 Error
Communication error
HVAC Error Codes
Lennox E50 Error
Indoor coil freeze protection
HVAC Error Codes
Lennox E51 Error
Compressor overload
HVAC Error Codes
Lennox E52 Error
High discharge temperature
HVAC Error Codes
Lennox E53 Error
Defrost timeout
HVAC Error Codes
Lennox E54 Error
Indoor temperature sensor fault
HVAC Error Codes
Lennox E55 Error
Outdoor temperature sensor fault
HVAC Error Codes
Lennox E56 Error
High pressure switch open
HVAC Error Codes
Lennox E57 Error
Low pressure switch open
HVAC Error Codes
Lennox E58 Error
Communication error
HVAC Error Codes
Lennox E59 Error
Indoor coil freeze protection
HVAC Error Codes
Lennox E60 Error
Compressor overload
HVAC Error Codes
Lennox E61 Error
High discharge temperature
HVAC Error Codes
Lennox E62 Error
Defrost timeout
HVAC Error Codes
Lennox E63 Error
Indoor temperature sensor fault
HVAC Error Codes
Lennox E64 Error
Outdoor temperature sensor fault
HVAC Error Codes
Lennox E65 Error
High pressure switch open
HVAC Error Codes
Lennox E66 Error
Low pressure switch open
HVAC Error Codes
Lennox E67 Error
Communication error
HVAC Error Codes
Lennox E68 Error
Indoor coil freeze protection
HVAC Error Codes
Lennox E69 Error
Compressor overload
HVAC Error Codes
Lennox E70 Error
High discharge temperature
HVAC Error Codes
Lennox E71 Error
Defrost timeout
HVAC Error Codes
Lennox E72 Error
Indoor temperature sensor fault
HVAC Error Codes
Lennox E73 Error
Outdoor temperature sensor fault
HVAC Error Codes
Lennox E74 Error
High pressure switch open
HVAC Error Codes
Lennox E75 Error
Low pressure switch open
HVAC Error Codes
Lennox E76 Error
Communication error
HVAC Error Codes
Lennox E77 Error
Indoor coil freeze protection
HVAC Error Codes
Lennox E78 Error
Compressor overload
HVAC Error Codes
Lennox E79 Error
High discharge temperature
HVAC Error Codes
Lennox E80 Error
Defrost timeout
HVAC Error Codes
Rheem E7 Error
Compressor overload
HVAC Error Codes
Rheem E8 Error
High discharge temperature
HVAC Error Codes
Rheem E9 Error
Defrost timeout
HVAC Error Codes
Rheem F10 Error
Outdoor temperature sensor fault
HVAC Error Codes
Rheem F11 Error
High pressure switch open
HVAC Error Codes
Rheem F12 Error
Low pressure switch open
HVAC Error Codes
Rheem F13 Error
Communication error
HVAC Error Codes
Rheem F14 Error
Indoor coil freeze protection
HVAC Error Codes
Rheem F15 Error
Compressor overload
HVAC Error Codes
Rheem F16 Error
High discharge temperature
HVAC Error Codes
Rheem F17 Error
Defrost timeout
HVAC Error Codes
Rheem F18 Error
Indoor temperature sensor fault
HVAC Error Codes
Rheem F19 Error
Outdoor temperature sensor fault
HVAC Error Codes
Rheem F20 Error
High pressure switch open
HVAC Error Codes
Rheem E21 Error
Low pressure switch open
HVAC Error Codes
Rheem E22 Error
Communication error
HVAC Error Codes
Rheem E23 Error
Indoor coil freeze protection
HVAC Error Codes
Rheem E24 Error
Compressor overload
HVAC Error Codes
Rheem E25 Error
High discharge temperature
HVAC Error Codes
Rheem E26 Error
Defrost timeout
HVAC Error Codes
Rheem E27 Error
Indoor temperature sensor fault
HVAC Error Codes
Rheem E28 Error
Outdoor temperature sensor fault
HVAC Error Codes
Rheem E29 Error
High pressure switch open
HVAC Error Codes
Rheem E30 Error
Low pressure switch open
HVAC Error Codes
Rheem E31 Error
Communication error
HVAC Error Codes
Rheem E32 Error
Indoor coil freeze protection
HVAC Error Codes
Rheem E33 Error
Compressor overload
HVAC Error Codes
Rheem E34 Error
High discharge temperature
HVAC Error Codes
Rheem E35 Error
Defrost timeout
HVAC Error Codes
Rheem E36 Error
Indoor temperature sensor fault
HVAC Error Codes
Rheem E37 Error
Outdoor temperature sensor fault
HVAC Error Codes
Rheem E38 Error
High pressure switch open
HVAC Error Codes
Rheem E39 Error
Low pressure switch open
HVAC Error Codes
Rheem E40 Error
Communication error
HVAC Error Codes
Rheem E41 Error
Indoor coil freeze protection
HVAC Error Codes
Rheem E42 Error
Compressor overload
HVAC Error Codes
Rheem E43 Error
High discharge temperature
HVAC Error Codes
Rheem E44 Error
Defrost timeout
HVAC Error Codes
Rheem E45 Error
Indoor temperature sensor fault
HVAC Error Codes
Rheem E46 Error
Outdoor temperature sensor fault
HVAC Error Codes
Rheem E47 Error
High pressure switch open
HVAC Error Codes
Rheem E48 Error
Low pressure switch open
HVAC Error Codes
Rheem E49 Error
Communication error
HVAC Error Codes
Rheem E50 Error
Indoor coil freeze protection
HVAC Error Codes
Rheem E51 Error
Compressor overload
HVAC Error Codes
Rheem E52 Error
High discharge temperature
HVAC Error Codes
Rheem E53 Error
Defrost timeout
HVAC Error Codes
Rheem E54 Error
Indoor temperature sensor fault
HVAC Error Codes
Rheem E55 Error
Outdoor temperature sensor fault
HVAC Error Codes
Rheem E56 Error
High pressure switch open
HVAC Error Codes
Rheem E57 Error
Low pressure switch open
HVAC Error Codes
Rheem E58 Error
Communication error
HVAC Error Codes
Rheem E59 Error
Indoor coil freeze protection
HVAC Error Codes
Rheem E60 Error
Compressor overload
HVAC Error Codes
Rheem E61 Error
High discharge temperature
HVAC Error Codes
Rheem E62 Error
Defrost timeout
HVAC Error Codes
Rheem E63 Error
Indoor temperature sensor fault
HVAC Error Codes
Rheem E64 Error
Outdoor temperature sensor fault
HVAC Error Codes
Rheem E65 Error
High pressure switch open
HVAC Error Codes
Rheem E66 Error
Low pressure switch open
HVAC Error Codes
Rheem E67 Error
Communication error
HVAC Error Codes
Rheem E68 Error
Indoor coil freeze protection
HVAC Error Codes
Rheem E69 Error
Compressor overload
HVAC Error Codes
Rheem E70 Error
High discharge temperature
HVAC Error Codes
Rheem E71 Error
Defrost timeout
HVAC Error Codes
Rheem E72 Error
Indoor temperature sensor fault
HVAC Error Codes
Rheem E73 Error
Outdoor temperature sensor fault
HVAC Error Codes
Rheem E74 Error
High pressure switch open
HVAC Error Codes
Rheem E75 Error
Low pressure switch open
HVAC Error Codes
Rheem E76 Error
Communication error
HVAC Error Codes
Rheem E77 Error
Indoor coil freeze protection
HVAC Error Codes
Rheem E78 Error
Compressor overload
HVAC Error Codes
Rheem E79 Error
High discharge temperature
HVAC Error Codes
Rheem E80 Error
Defrost timeout
HVAC Error Codes
Goodman E6 Error
Indoor coil freeze protection
HVAC Error Codes
Goodman E7 Error
Compressor overload
HVAC Error Codes
Goodman E8 Error
High discharge temperature
HVAC Error Codes
Goodman E9 Error
Defrost timeout
HVAC Error Codes
Goodman F10 Error
Outdoor temperature sensor fault
HVAC Error Codes
Goodman F11 Error
High pressure switch open
HVAC Error Codes
Goodman F12 Error
Low pressure switch open
HVAC Error Codes
Goodman F13 Error
Communication error
HVAC Error Codes
Goodman F14 Error
Indoor coil freeze protection
HVAC Error Codes
Goodman F15 Error
Compressor overload
HVAC Error Codes
Goodman F16 Error
High discharge temperature
HVAC Error Codes
Goodman F17 Error
Defrost timeout
HVAC Error Codes
Goodman F18 Error
Indoor temperature sensor fault
HVAC Error Codes
Goodman F19 Error
Outdoor temperature sensor fault
HVAC Error Codes
Goodman F20 Error
High pressure switch open
HVAC Error Codes
Goodman E21 Error
Low pressure switch open
HVAC Error Codes
Goodman E22 Error
Communication error
HVAC Error Codes
Goodman E23 Error
Indoor coil freeze protection
HVAC Error Codes
Goodman E24 Error
Compressor overload
HVAC Error Codes
Goodman E25 Error
High discharge temperature
HVAC Error Codes
Goodman E26 Error
Defrost timeout
HVAC Error Codes
Goodman E27 Error
Indoor temperature sensor fault
HVAC Error Codes
Goodman E28 Error
Outdoor temperature sensor fault
HVAC Error Codes
Goodman E29 Error
High pressure switch open
HVAC Error Codes
Goodman E30 Error
Low pressure switch open
HVAC Error Codes
Goodman E31 Error
Communication error
HVAC Error Codes
Goodman E32 Error
Indoor coil freeze protection
HVAC Error Codes
Goodman E33 Error
Compressor overload
HVAC Error Codes
Goodman E34 Error
High discharge temperature
HVAC Error Codes
Goodman E35 Error
Defrost timeout
HVAC Error Codes
Goodman E36 Error
Indoor temperature sensor fault
HVAC Error Codes
Goodman E37 Error
Outdoor temperature sensor fault
HVAC Error Codes
Goodman E38 Error
High pressure switch open
HVAC Error Codes
Goodman E39 Error
Low pressure switch open
HVAC Error Codes
Goodman E40 Error
Communication error
HVAC Error Codes
Goodman E41 Error
Indoor coil freeze protection
HVAC Error Codes
Goodman E42 Error
Compressor overload
HVAC Error Codes
Goodman E43 Error
High discharge temperature
HVAC Error Codes
Goodman E44 Error
Defrost timeout
HVAC Error Codes
Goodman E45 Error
Indoor temperature sensor fault
HVAC Error Codes
Goodman E46 Error
Outdoor temperature sensor fault
HVAC Error Codes
Goodman E47 Error
High pressure switch open
HVAC Error Codes
Goodman E48 Error
Low pressure switch open
HVAC Error Codes
Goodman E49 Error
Communication error
HVAC Error Codes
Goodman E50 Error
Indoor coil freeze protection
HVAC Error Codes
Goodman E51 Error
Compressor overload
HVAC Error Codes
Goodman E52 Error
High discharge temperature
HVAC Error Codes
Goodman E53 Error
Defrost timeout
HVAC Error Codes
Goodman E54 Error
Indoor temperature sensor fault
HVAC Error Codes
Goodman E55 Error
Outdoor temperature sensor fault
HVAC Error Codes
Goodman E56 Error
High pressure switch open
HVAC Error Codes
Goodman E57 Error
Low pressure switch open
HVAC Error Codes
Goodman E58 Error
Communication error
HVAC Error Codes
Goodman E59 Error
Indoor coil freeze protection
HVAC Error Codes
Goodman E60 Error
Compressor overload
HVAC Error Codes
York E5 Error
Communication error
HVAC Error Codes
York E6 Error
Indoor coil freeze protection
HVAC Error Codes
York E7 Error
Compressor overload
HVAC Error Codes
York E8 Error
High discharge temperature
HVAC Error Codes
York E9 Error
Defrost timeout
HVAC Error Codes
York F10 Error
Outdoor temperature sensor fault
HVAC Error Codes
York F11 Error
High pressure switch open
HVAC Error Codes
York F12 Error
Low pressure switch open
HVAC Error Codes
York F13 Error
Communication error
HVAC Error Codes
York F14 Error
Indoor coil freeze protection
HVAC Error Codes
York F15 Error
Compressor overload
HVAC Error Codes
York F16 Error
High discharge temperature
HVAC Error Codes
York F17 Error
Defrost timeout
HVAC Error Codes
York F18 Error
Indoor temperature sensor fault
HVAC Error Codes
York F19 Error
Outdoor temperature sensor fault
HVAC Error Codes
York F20 Error
High pressure switch open
HVAC Error Codes
York E21 Error
Low pressure switch open
HVAC Error Codes
York E22 Error
Communication error
HVAC Error Codes
York E23 Error
Indoor coil freeze protection
HVAC Error Codes
York E24 Error
Compressor overload
HVAC Error Codes
York E25 Error
High discharge temperature
HVAC Error Codes
York E26 Error
Defrost timeout
HVAC Error Codes
York E27 Error
Indoor temperature sensor fault
HVAC Error Codes
York E28 Error
Outdoor temperature sensor fault
HVAC Error Codes
York E29 Error
High pressure switch open
HVAC Error Codes
York E30 Error
Low pressure switch open
HVAC Error Codes
York E31 Error
Communication error
HVAC Error Codes
York E32 Error
Indoor coil freeze protection
HVAC Error Codes
York E33 Error
Compressor overload
HVAC Error Codes
York E34 Error
High discharge temperature
HVAC Error Codes
York E35 Error
Defrost timeout
HVAC Error Codes
York E36 Error
Indoor temperature sensor fault
HVAC Error Codes
York E37 Error
Outdoor temperature sensor fault
HVAC Error Codes
York E38 Error
High pressure switch open
HVAC Error Codes
York E39 Error
Low pressure switch open
HVAC Error Codes
York E40 Error
Communication error
HVAC Error Codes
Daikin E6 Error
Indoor coil freeze protection
HVAC Error Codes
Daikin E7 Error
Compressor overload
HVAC Error Codes
Daikin E8 Error
High discharge temperature
HVAC Error Codes
Daikin E9 Error
Defrost timeout
HVAC Error Codes
Daikin F10 Error
Outdoor temperature sensor fault
HVAC Error Codes
Daikin F11 Error
High pressure switch open
HVAC Error Codes
Daikin F12 Error
Low pressure switch open
HVAC Error Codes
Daikin F13 Error
Communication error
HVAC Error Codes
Daikin F14 Error
Indoor coil freeze protection
HVAC Error Codes
Daikin F15 Error
Compressor overload
HVAC Error Codes
Daikin F16 Error
High discharge temperature
HVAC Error Codes
Daikin F17 Error
Defrost timeout
HVAC Error Codes
Daikin F18 Error
Indoor temperature sensor fault
HVAC Error Codes
Daikin F19 Error
Outdoor temperature sensor fault
HVAC Error Codes
Daikin F20 Error
High pressure switch open
HVAC Error Codes
Daikin E21 Error
Low pressure switch open
HVAC Error Codes
Daikin E22 Error
Communication error
HVAC Error Codes
Daikin E23 Error
Indoor coil freeze protection
HVAC Error Codes
Daikin E24 Error
Compressor overload
HVAC Error Codes
Daikin E25 Error
High discharge temperature
HVAC Error Codes
Daikin E26 Error
Defrost timeout
HVAC Error Codes
Daikin E27 Error
Indoor temperature sensor fault
HVAC Error Codes
Daikin E28 Error
Outdoor temperature sensor fault
HVAC Error Codes
Daikin E29 Error
High pressure switch open
HVAC Error Codes
Daikin E30 Error
Low pressure switch open