Truma Caravan Heater (Warm Air)

[Paul_374358508]

The Piezo Ignitor does not operate after the first initian push of the push button. I am not able to use the gas side of things. Any help would be appreciated.I have a new caravan Sterling 620 6months old, but I am in France and do not want to shorten my time in France. Regards Paul.

 

[busman1]

Paul,

I had this problem with mine but yours may be different.

underneath the heater there may be a well hidden battery on the right hand side behind a small sliding cover have a look good luck.

Will

 

[gary]

The manual piezo is the battery part of an electrical circuit, the ignition wire down to the burner is the positive lead and the fire and fire front the earth return back to the piezo/battery.

Like any other circuit, if this circuit is not complete then you will get a poor or intermittent spark or no spark at all.

The piezo has a direct connection at the bottom for the ignition wire, he earth is a brass tab sticking out to connect it to the metal of the fire front. I'm not sure but this tab might simply need to be touching one of the grill louvres, you should be able to see this with a torch looking through from the front.

Theres then a spring wire, by the side of the gas valve, to connect the fire front to the base plate of the fire itself, you just might be able to feel this under the bottom edge without removing the front.

To remove the front, the top pulls out off two clips, one clip either side close to the top, again the clips are visible with a torch through the grill

Other than that a faulty piezo can give the same symptoms and if it is at fault, it's a simple job to replace.

 

[Paul_374358508]

The manual piezo is the battery part of an electrical circuit, the ignition wire down to the burner is the positive lead and the fire and fire front the earth return back to the piezo/battery.

Like any other circuit, if this circuit is not complete then you will get a poor or intermittent spark or no spark at all.

The piezo has a direct connection at the bottom for the ignition wire, he earth is a brass tab sticking out to connect it to the metal of the fire front. I'm not sure but this tab might simply need to be touching one of the grill louvres, you should be able to see this with a torch looking through from the front.

Theres then a spring wire, by the side of the gas valve, to connect the fire front to the base plate of the fire itself, you just might be able to feel this under the bottom edge without removing the front.

To remove the front, the top pulls out off two clips, one clip either side close to the top, again the clips are visible with a torch through the grill

Other than that a faulty piezo can give the same symptoms and if it is at fault, it's a simple job to replace.

Thank you for your quick reply, a very comprehensive explanation of the workings, you are correct the front cover was not producing the circuit return. All fine now.

Regards Paul