E01

Low Refrigerant Pressure

E02

Evaporator Coil Freeze

E03

Compressor Overload Protection

E04

Indoor Air Temperature Sensor Fault

E05

Outdoor Condenser Fan Motor Failure

E06

High Pressure Switch Trip

E07

Indoor Blower Motor Overcurrent

E08

Outdoor Temperature Sensor Error

E09

Communication Error Between Indoor and Outdoor Units

E10

Indoor Unit Drainage Blockage

E11

Outdoor Unit Contactor Failure

E12

Thermostat Communication Failure

E13

Compressor Start Relay Failure

E14

High Limit Thermostat Open

E15

Defrost Sensor Malfunction

E3

Low Pressure Lockout

E0

System Startup Failure

E2

High Pressure Switch Trip

E4

Low Pressure Switch Trip

E5

Compressor Overload

E6

Indoor Fan Motor Failure

E7

Outdoor Fan Motor Lock

E8

Temperature Sensor Fault

E9

Indoor Coil Freeze

EA

Defrost Sensor Fault

EB

Communication Error with Thermostat

EC

Indoor Blower Capacitor Failure

ED

Outdoor Unit High Temperature

EE

Compressor Start Relay Failure

EF

Outdoor Coil Freeze Protection Activated

E1

Pressure Switch Failure

E2

Limit Switch Open

E3

Ignition Failure

E4

Flame Sensor Fault

E5

Blower Motor Fault

E6

Inducer Motor Failure

E7

Ignition Control Board Fault

E8

Thermostat Communication Error

E9

Gas Valve Solenoid Fault

E10

Inducer Pressure Switch Stuck Closed

E11

Rollout Switch Tripped

E12

Ignitor Short Circuit

E13

Limit Circuit Open

E14

Draft Inducer Pressure Switch Not Closing

E15

Ignition Transformer Fault

E01

Pressure Switch Failure

E02

Ignition Failure

E03

High Limit Switch Open

E04

Inducer Motor Failure

E05

Flame Sensor Failure

E06

Blower Motor Overload

E07

Limit Switch Shorted

E08

Control Board Communication Error

E09

Flame Rollout Detected

E10

Gas Valve Solenoid Failure

E11

Transformer Voltage Fault

E12

Limit Circuit Open

E13

Flame Sense Circuit Failure

E14

Rollout Switch Open

E15

Draft Inducer Pressure Sensor Failure