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Hi, I've checked some old posts, and find I have a similar problem to many others.

Just bought a 2001 elddis typhoon and keep finding the electric heating cuts out after about an hour and will not come back on unless switched off at mains and left awhile before restarting. ( gas all works well) A clicking is coming from the rear of heater when wall control is adjusted. Looks like I need new relays maybe? and then a remote thermostat. But I'm not as lucky to have the heater below a wardrobe, it's below two drawers with a cross bar so limiting access.

I'm a novice, but are the relays push fit or do they need soldered? as the grey box is just about within reach. If it needs to come out to allow repairs, how is fitted to the floor.

Any photos/diagrams would be great help.

Keep the good work and enjoy your "van"  Bruce

Some pictures here you should see that without good access you won't be able to disconnect the pcb and the relays are soldered on anyway.

I would first go for a remote stat to see if that makes it work better and you should be able to reach to fit this, if that does not cure the problem then nothing lost.

I can supply both stats and pcb's now, my uprated pcb's have better designed relays fitted, not simply higher rated ones which only last a bit longer than the original ones!

PS, no you cannot see all the 240v connections but there are about 10 to disconnect/reconnect, also the pictures show the overtemp stats which may have something to do with your problem?

Do you have any 230v/10v transformers from the pcb on a Truma Ultraheat system? Mine has blown and I'm having trouble sourcing another. Thanks.

John

No, it's an odd ball transformer but you will find the commonly available 9v version work perfectly well

As a matter of interest, do you remember it blowing? I have a feeling it's going to be a voltage spike that causes it, it's certainly not common. I wonder then if something noticable happened at the same time as it blowing that might give a clue?

Why did you not get the 9v version? this voltage is not just for the relays but power for the rest of the circuit, I know one volt less is ok not tested plus two!

Quote: Originally posted by ghostpiper on 06/5/2009

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I have also ordered 3 0ff relays from Maplins, these are the upgraded 16 amp ones. I have read that the 10 amp ones that are fitted can burn out frequently.

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Hi ghostpiper, do you have the Maplin's reference number for the 16 Amp relays please?

Many thanks, Dave