Cold Rooms & Walk-ins
AL02: Defrost time-out
Carrier 30XA-250
Safe preliminary checks permitted
Documented meaning
Defrost ended on its safety time limit.
Model variants covered: see the model record
Documented possible causes
- · Drain heater blocked or iced
- · Heater circuit open
- · Termination sensor fault
Safe preliminary checks
- · Confirm the drain is clear of ice
Professional service required
- · Confirm the drain is clear of ice
- · Book an inspection - do not continue resetting
- · professional_only
Stop and call a professional if you see
- · Burning smell, smoke, water on live parts or a tripped protective device
- · Unusual noise, vibration or a refrigerant leak