| Alert Codes | Priority-Alert Text-Steps to Clear |
|---|---|
| 294 | Critical. (Furnace) There is over current in the furnace inducer motor. The system will go into Watchguard mode. Check combustion blower bearings, wiring and amps. Replace if does not operate or does not meet performance standards. The alarm/ fault clears after inducer current is sensed to be inrange after the ignition following the Watchguard mode or reset. |
| 295 | Minor. (Furnace) The indoor blower motor is over heating. Indoor blower motor over temperature (motor tripped on internal protector). Check motor bearings and amps. Replace if necessary. The alarm/fault clears after blower demand is satisfied. |
| 310 | Critical. (Furnace / Air Handler) There is a problem with (furnace or airhandler) discharge air sensor. Compare outdoor sensor resistance to temperature/resistance charts in installation instructions. Replace sensor if necessary. The alarm/fault is cleared 30 seconds after fault is detected as recovered. |
| 311 | Minor. (Furnace) The heat firing rate has been reduced to match available airflow (cutback mode). Warning Only. Furnace blower in cutback mode due to restricted airflow. Reduce firing rate every 60 seconds to match available CFM. Check filter and duct system. To clear, replace filter if needed or repair/add duct. 2stage controls will reduce firing rate to 1st stage. The alarm/fault clears when a heat call finishes successfully. |
| 312 | Minor. (Furnace / Air Handler) The blower cannot provide the requested CFM due to high static. Warning Only. Restricted airflow Indoor blower is running at a reduced CFM (Cutback Mode The variable speed motor has preset speed and torque limiters to protect the motor from damage caused by operating outside of design parameters (0 to 0.8” e.g.. total external static pressure). Check filter and duct system. To clear, replace filter if needed or repair/add duct. The alarm/fault is cleared after the current service demand is satisfied. |
| 313 | Minor. (Furnace / Air Handler) The indoor and outdoor unit capacities do not match. Check for proper configuring in installation instructions. Alarm is just a warning. The system will operate, but might not meet efficiency and capacity parameters. The alarm will clear after commissioning is complete. |
| 344 | Critical. (Furnace) Relay Y1 Failure. Y1 relay failed; operation stopped. Alarm clears 300 seconds after Y1 input sensed OFF. |
| 345 | Critical. (Air Handler / Heat Pump) The “O” relay on the airhandler has failed. Either the pilot relay contacts did not close or the relay coil did not energize. O relay / Stage 1 failed. Pilot relay contacts did not close or the relay coil did not energize. Replace control. Cleared after the fault recovered following reset. |
| 346 | (Air Handler) The heat pump jumper was not removed on the airhandler control board. Configuration link(s) not removed on control. Cut OR. Applicable with non communicating outdoor unit with communicating indoor system. |
| 347 | Critical. (Furnace / Air Handler) The “Y1” relay on the (furnace or airhandler) has failed. Either the pilot relay contacts did not close or the relay coil did not energize. Operation stopped. Y1 relay / Stage 1 failed. (Pilot relay contacts did not close or the relay coil did not energize; no input back to IFC chip). Critical Alert. Cleared after reset and Y1 input sensed. |
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