15 known error codes for this model

AF Easy Fix

Restricted Airflow Detected

E1 Moderate

Thermistor Open or Short Circuit

E2 Easy Fix

Stuck Button Alternate Code

F1 E1 Moderate

Main Control Board Failure

F1 E2 Moderate

Control Communication Error

F2 E1 Easy Fix

Stuck Button on Control Panel

F2 E5 Moderate

User Interface Communication Fault

F3 E1 Moderate

Exhaust Thermistor Failure

F3 E2 Easy Fix

Moisture Sensor Bar Failure

F3 E3 Moderate

Inlet Thermistor Failure

F3 E5 Moderate

Humidity Sensor Failure

F4 E1 Moderate

Heater Relay Failure

F6 E1 Moderate

Main Communication Error

F6 E2 Moderate

User Interface Communication Loss

PF Easy Fix

Power Failure Detected