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A Challenger that stays cold or cuts out usually shows a symptom pointing to one of four culprits: an empty gas tank, a faulty circuit board, a blocked combustion air supply, or a fault in the circulation pump.

A Challenger that stays cold or cuts out usually shows a symptom pointing to one of four culprits: an empty gas tank, a faulty circuit board, a blocked combustion air supply, or a fault in the circulation pump. First check the gas supply and the fuses, and if in doubt, have a dealer read the fault codes.
Challenger typically installs Truma Combi (gas or diesel) or Alde water heating in the higher models. The exact approach depends on the system, but many problems can be traced with basic checks.
Challenger campers are typically equipped with a Truma Combi (gas or diesel) or an Alde water heater on the more expensive integral models. Both systems are reliable, but if the heater does not start or keeps cutting out, a systematic diagnosis is required.
First check the simple things:
With an Alde system, you should normally hear the circulation pump running softly. If it does not, the pump itself or its control may be faulty. With a Truma Combi, a cold air stream is often due to a dirty burner or a faulty temperature sensor.
A dealer typically charges between 80 and 150 euros for a diagnosis, excluding parts. A new circuit board or circulation pump can easily cost 300 to 600 euros including installation. Sometimes the issue is simple to fix, but with older units, the costs do not always outweigh the residual value. For more background on general heating problems, read our explanation about camper heating that does not work.
If the repair threatens to become too expensive, it is wise to have the current market value of your motorhome assessed. Sometimes selling without expensive repairs is financially more attractive.
Frequently asked questions
Get a free, no-obligation valuation of your Challenger. Selling without repairs might be the smartest choice for you. <a href="/challenger-verkopen">Find out what your Challenger is worth here</a>.