Install Instructions
74
Table 19. Alert Codes and Troubleshooting
GF= Gas Furnace, AH=Air Handler, ID=Indoor unit (GF or AH), HP=Heat Pump, AC=Air Conditioner, OD=Outdoor Unit (AC or HP), PA=Pure Air S, ZA=Zone system and TS=Thermostat
Alert
Code
Inverter
Flash
Code
Priority
Condition
Actual Displayed
Alert Text
Under dealer
control center >
Notications
Component or System Operational State and Troubleshooting Tip How to clear alert code
350
Service
Urgent
AH Electric Heat
Not Congured
The air handler’s electric heat is not congured or incorrectly congured.
• Heat call with no congured or incorrectly congured electric heat.
• Check for proper conguring under Conguring Electric Heat Stages in the air handler
installation instructions.
NOTE: Smart hub MUST be removed from the system before conguring electric heat.
Automatically clears after electrical
heat detection is successful.
351
Service
Urgent
AH Electric Heat
Stage 1 Fault
There is an issue with the air handler’s rst stage electric heat. Either the pilot relay contacts did
not close or the relay coil in the electric heat section did not energize.
Possible heat section / stage 1 failure.
NOTE: Air handler will operate on heat pump rst stage for the remainder of the heat call.
Automatically clears after fault
recovered.
352 Service Soon
AH Electric Heat
Stage 2 Fault
There is a issue with the air handler’s second stage electric heat. Either the pilot relay contacts did
not close or the relay coil in the electric heat section did not energize.
NOTE: The air-handler will operate on rst stage electric heat until the issue is resolved.
Automatically clears after fault
recovered.
353 Service Soon
AH Electric Heat
Stage 3 Fault
There is a issue with the air handler’s third stage electric heat. Either the pilot relay contacts did
not close or the relay coil in the electric heat section did not energize.
NOTE: The air-handler will operate on rst stage electric heat until the issue is resolved.
Automatically clears after fault
recovered.
354 Service Soon
Electric Heat
AH Electric Heat
Stage 4 Fault
There is a issue with the air handler’s fourth stage electric heat. Either the pilot relay contacts did
not close or the relay coil in the electric heat section did not energize.
NOTE: The air-handler will operate on rst stage electric heat until the issue is resolved.
Automatically clears after fault
recovered.
355 Service Soon
AH Electric Heat
Stage 5 Fault
There is an issue with the air handler’s fth stage electric heat. Either the pilot relay contacts did
not close or the relay coil in the electric heat section did not energize.
NOTE: The air-handler will operate on rst stage electric heat until the issue is resolved.
Automatically clears after fault
recovered.