Carrier · 30XA/XAS/XB/XBP/XW Chillers
The feedback thermistor for the evaporator heater has a fault. No specific action is taken, but the heater function might be impacted.
Click steps to track your progress.
Inspect the wiring to the evaporator heater feedback thermistor.
Check the thermistor for any physical damage.
Contact Carrier Service if the evaporator heater does not function correctly.