Dometic refrigerator · 2 model lines

Dometic refrigerator code E3

Dometic documentation describes E3 separately for each model line: Dometic RM1350 / RM1350SL (“Cooling unit malfunction; the manual directs owners to contact a Service Center”); Dometic RM3762 / RM3962 (“A cooling unit malfunction”). Compare the wording for your model below.

Check your model first. The same code can mean different things on different models. Find the model number on the appliance's data label, then use the matching row below.

What code E3 means by model

Model lineWhat the manufacturer saysSource
Dometic RM1350 / RM1350SLThe Dometic RM1350 operating instructions list E3 as: Cooling unit malfunction; the manual directs owners to contact a Service Center.Dometic RM1350 and RM1350SL Operating Instructions
Dometic RM3762 / RM3962The RM3762/RM3962 operating instructions list E3 as a cooling unit malfunction.Dometic RM3762 RM3962 Refrigerator Operating Instructions

What you can safely check

  • Turn the refrigerator off if the error repeats.
  • Record the displayed code, model, product number, and serial number.
  • Keep food safety in mind if cooling is interrupted.
  • Turn the refrigerator off and protect food if cooling has stopped.
  • If you smell ammonia or see leakage, ventilate and do not use the refrigerator.

Stop and call a technician for

  • Cooling-unit and refrigerant-system diagnosis is service-only work.
  • Cooling-unit inspection, replacement, or leak diagnosis is service-only.

Do not bypass refrigerator controls, safety devices, LP components, refrigerant/cooling-unit parts, or electrical circuits. Shut off the appliance and arrange qualified service for repeated, unsafe, or unresolved faults.

A cooling-unit malfunction is not owner repairable; stop use when cooling is unsafe and contact a Dometic service center.

Write this down before you call

  • inside fresh-food-compartment data label
  • photo of flashing display
  • power source in use
  • Interior data label model, product number, serial number
  • Front display code or lamp state photo
  • Power module/display board part number if service requests it

Other codes on Dometic RM1350 refrigerators

Full table: Dometic RM1350 refrigerators

  • E0 No communication between the display and power module
  • E1 Disconnected LP gas valve or LP gas hardware fault; the refrigerator may still be operati…
  • E2 Temperature sensor device or associated electronic circuitry failure
  • E4 DC voltage is outside the manual range of approximately 8-18 VDC

Other codes on Dometic RM3762 / RM3962 refrigerators

Full table: Dometic RM3762 / RM3962 refrigerators

  • E0 No communication between the display and power module
  • E1 A disconnected LP valve or hardware fault in the LP operation system; the refrigerator ma…
  • E2 A failure of the temperature sensor device or associated electronic circuitry
  • E4 DC voltage out of range, above or below the manual limit values
  • LP A flashing LP message alternating with the fresh-food temperature means LP gas ignition f…

Related troubleshooting guides

Official sources