our Webasto Thermo Top C isn't workingafter 7 years. We have run it for about 30 mins but not luck. I have read troubleshooting, but can you please tell me what the problem USUALLY is? Thanks very much. Sue

Thermo Top C Webasto heaters are great heaters, sorry to hear yours has stopped working. Can you hear the heater try to start? can you hear the heater water pump running? or the diesel fuel pump ticking away? Little difficult at this stage to advise what your fault is, but if you could call our tech support team 01522 243310 or alternatively email us at sales@butlertechnik.com so we can learn some more symptoms I'm sure we can help. Thank you for getting in touch