Air Handler Alarms and Alerts
Which Alarm do you have?
Reading Alarms and Alerts on the Air Handler Control Board.
The Air handler uses a flashing LED for faults. It is best to read faults spelled out at the EcoNet stat but in the event the system is wired in a legacy configuration, below are LED codes. Do NOT confuse blower CFM light with fault indicator LED.
There are additional alarms and alerts that may be associated with the air handler that can only be seen at the EcoNet Thermostat. There are a few repeated flash codes. You will have to troubleshoot both.
The Alarm or Alerts
2 Flashes: Memory Card Config Write Data Failure
2 Flashes: Memory Card Static Pressure Data Failure
3 Flashes: ECM Power Level Doesnt Match Memory Card
4 Flashes: ECM Blower Motor Run Fault
4 Flashes: ECM Blower Motor Communication Failure
4 Flashes: Blower Fault - Incomplete Parameters
5 Flashes: Return Air Temp Thermistor Failure
6 Flashes: Leaving Air Temp Thermistor Failure
7 Flashes: Evap Temp Thermistor Failure
8 Flashes: EXV Temp Thermistor Failure
10 Flashes: Suction Pressure Sensor Failure
