How to Choose the Right Spare Part for Your Caravan Fridge

Spare Parts Buyer's Guide

A practical guide from Bedam Leisure — caravan & motorhome specialists

Here's the most expensive mistake we see people make with fridge spares: they read the model name off the front, order a part that looks exactly right, fit it… and it doesn't match. The reason is almost never carelessness. It's that a caravan fridge is identified by more than its model name — and the bit that actually pins down the right part is hiding on a small silver label most owners have never looked at.

Get that label right and you'll order the correct part first time, every time. Here's how to read it.

Why ordering fridge parts goes wrong

Caravan and motorhome fridges (the absorption type from Dometic and Thetford) are made in runs over many years. A fridge sold as an ‘RM’ or an ‘N3000’ in 2014 isn't identical to the one sold under the same name in 2019. Between versions, the manufacturers quietly change the parts that fail most often — the control board (PCB), the heating element, the door seal, the hinges, the burner jet, even the cooling unit.

So two fridges that look identical from the front can need completely different spares. Matching on the model name alone is exactly how a part that ‘should fit’ turns into a return. The fix is to identify your exact unit using the data plate.

Step one: find your data plate

The data plate (sometimes called the rating plate or data badge) is a small printed label fixed to the fridge. It's nearly always inside the fridge, and it's quick to find once you know where to look.

Do this while you're there: take a clear photo of the whole plate on your phone. It saves you crouching in the awning a second time, and it means nothing gets mis-typed when you order.

ℹ Reading it

The three numbers that matter

Once you've found the plate, you only need to note three things:

1. The model number. This is the family — an RMS 8505, an N3000, and so on. It's where you start, but on its own it isn't enough, because the same model spans several versions.

2. The product number (Dometic) or serial number (Thetford). On a Dometic plate this is the PNC / product number — the number that identifies your exact appliance for spares. If there's no PNC, use the SKU instead. On a Thetford plate, the serial number under the barcode does the same job. This is the number that matters most.

3. The production date / version. The serial number also tells you when your fridge was built — and that's decisive for the parts that changed between versions. A Thetford control board, for example, is different for units made after a certain production date, so two N3000s of different ages take different boards. When you're buying anything electronic or sealed, the build date is what separates the right part from a costly wrong one.

Where this matters most

For simple bits — a shelf, a door bin, a salad drawer — the model number alone is usually fine. It's the parts below where the version really counts, and where we'd always check the product or serial number before ordering:

Control boards (PCBs) · heating elements · thermostats and thermistors · door seals · hinges and door catches · burner jets and gas components · cooling units. Get the version wrong on any of these and it either won't fit or won't work safely.

You can browse spares for the two main brands here: Dometic fridge spares and Thetford fridge spares. And a safety note worth repeating: anything involving the gas circuit — burners, jets, gas valves — must be fitted by a qualified, competent engineer.