Door Open Timeout (Zone)

The zone door has remained open longer than the allowed programmed setting.

Possible causes

Doors open too long during loading/unloading
Damaged or misaligned door switch
Cargo obstructing door closure
Door sensor wiring failure

Recommended actions

Close trailer doors immediately
Inspect magnetic or physical door sensor
Verify timer configured in microprocessor
Check switch circuit continuity

Can't find your code? Talk to an expert

$150

One-on-one phone session with a Low Temp refrigeration tech. Emergency temporary assistance only.

Email (opcional)

Teléfono (opcional)

¿Tienes un cupón?

I understand this is emergency temporary remote guidance only, no repair is guaranteed, I assume all risks, and Low Temp Service is not liable for cargo, engine, electrical, mechanical or accident damages. I accept the Terms & Conditions.

Have a question? Ask the community

Thousands of refrigeration mechanics read and answer for free. Post your case in under 1 minute.

Other Thermo King codes

00No Alarms Exist 02Check Evaporator Coil Sensor (Zone)03Check (Control) Return Air Sensor (Zone)04Check (Control) Discharge Air Sensor (Zone)05Check Ambient Temp Sensor 06Check Coolant Temp Sensor

View all Thermo King codes

Need a professional diagnosis?

Low Temp Service — refrigeration experts in Florida.