Fridge or Electric Step Not Working? How to Inspect the Relays

If your fridge or electric sidestep isn't working, the issue may be due to a faulty relay in your motorhome's rear fuse panel. This quick inspection can help identify the issue and assist us in guiding you further.

Follow the steps below, using the instructional video as a reference.

Instructional Video: Relay Inspection

A PDF guide of this video will also be available for download.

Step 1: Access the Relay/Fuse Box

Open the rear compartment where the fuse and relay panel is located (as shown in the video).
Remove the black plastic cover to expose the relays and fuses.

Step 2: Identify the Relays

Once the cover is off, you’ll see three vertically aligned relays:

Top Relay – Ignition
Middle Relay – Electric Step
Bottom Relay – Fridge

These relays are standard and interchangeable, which allows for testing by swapping.

Step 3: Inspect the Relays for Damage

Carefully remove each relay and inspect it for the following signs:

Burnt smell
Black or discoloured marks on the casing or metal pins
Bent or broken pins – each relay should have 5 pins intact

? If any relay shows visible damage, note which one (top, middle, or bottom) and take a photo if possible.

Step 4: Swap and Test

If none of the relays appear damaged:

Try swapping the non-working relay (e.g., fridge or step) with one of the others.
Reinsert the relays and test the affected feature again.
- If swapping fixes the problem, it's likely the original relay is faulty.
- If nothing changes, please still report your findings.

Step 5: Let Us Know the Outcome

Once you’ve completed the inspection:

Share your results by calling or emailing us.
Include any photos of damaged relays or details about what happened after the swap.

Call us on tel:1300 016 532
Or email roadside@cruisinmotorhomes.com.au

By performing this relay check, you help speed up the repair process and reduce potential downtime. Thanks for giving it a go!