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A Challenger fridge that no longer cools rarely points to one universal cause.

A Challenger fridge that no longer cools rarely points to one universal cause. These campers typically have Dometic or Thetford absorption fridges, and the problem depends heavily on the energy source used. An empty gas bottle, a blown 12V fuse or a faulty 230V connection are the first suspects.
In addition, a faulty thermostat, a burnt circuit board or a blocked burner can completely stop cooling. The exact diagnosis starts with determining which energy source the fridge is failing on.
Challenger has been installing Dometic and Thetford fridges for years, depending on the model and year of manufacture. Both brands have their own typical quirks, but the basic diagnosis is similar. Always start with the simplest checks: is the fridge on, is the door properly closed, and is there power on the selected source?
An absorption fridge works on three sources, but not every source is always available. Test them one by one:
If the fridge does not cool on any source, the cooling unit may be faulty. You can often smell this as an ammonia smell or see it as yellow powder near the burner. In that case, repair is usually not economical. For more background on how it works and how to test it, see our general explanation about a motorhome fridge that does not work.
The costs depend heavily on the part. A new thermostat or thermocouple typically costs between 50 and 150 euros, a circuit board 150 to 400 euros, and a new cooling unit easily 800 to 1500 euros including installation. Also allow for 1 to 2 hours of labour. Do not be surprised by an expensive bill: ask for a diagnosis and a quote in advance.
Are you unsure whether the investment is still worthwhile? Then take a look at the current market value of your motorhome. Sometimes selling with a faulty fridge is financially more interesting than repairing it.
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We buy Challenger campers, even with a defective refrigerator. Request a free and non-binding valuation today via our page <a href="/challenger-verkopen">sell your Challenger</a> and know immediately where you stand.