Door 1 Open / Door Switch 1 Failure (DSR)

Door 1 is detected open or the door switch 1 reports a fault.

Possible causes

Door left open
Failed door switch
Damaged switch wiring
Misaligned door

Recommended actions

Close the door
Inspect door switch and wiring
Replace switch if defective
Realign door if needed

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.