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A Hobby motorhome where the heating stays cold while the boiler does work often points to a system-specific fault.

A Hobby motorhome where the heating stays cold while the boiler does work often points to a system-specific fault. With Truma, the cause is usually a blocked combustion air supply or a dirty ignition, while an Alde system usually suffers from air in the circuit or a faulty circulation pump. Always check the gas or diesel tank, the 12V supply and the fuses first, because an empty tank or a blown fuse is in practice the most common culprit.
Modern Hobby motorhomes are equipped with a Truma Combi (gas or diesel) or an Alde water heating system. Each system has its own typical faults, but many problems can be solved with basic checks. Have a diagnosis carried out before you replace expensive parts.
Hobby has been installing heating systems from Truma or Alde for years, depending on the model and year of construction. The Truma Combi runs on gas or diesel and blows warm air; the Alde Compact is a water-based system that works via radiators and underfloor heating. If your heating does not start or keeps cutting out, it is worth checking the basics first.
Always check the simple things first:
If those checks do not reveal anything, it becomes more technical. In Truma systems, a dirty ignition, a worn fan, or a faulty circuit board are known causes. In Alde, the circulation pump may be stuck or the boiler may be scaled. A thorough diagnosis often requires specific equipment. You will find more background in our general explanation about camper heating not working.
The costs depend heavily on the part. A new ignition unit for a Truma Combi costs roughly between 150 and 300 euros, a circulation pump for Alde between 100 and 250 euros, excluding labour. Allow for 1 to 3 hours of work at 60 to 90 euros per hour. With a faulty circuit board, the bill can rise to 600 euros or more. Always have a diagnosis done first, because replacing parts blindly is expensive.
If the repair is no longer economically viable or you are tired of the hassle, then selling may be a sensible choice. We buy Hobby campers, even with a faulty heating system. Feel free to request a free valuation and discover what your Hobby sale can still bring in. This way you avoid expensive repairs and quickly get clarity on the market value of your motorhome.
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We buy your Hobby motorhome, even with a faulty heating system. Request a free and non-binding valuation today and know immediately where you stand.