Truma gas heater, piezo fault.

[mike w]

I suspect our piezo ignition button has failed. To check, would you expect a spark between the earth and the main spade connector?
Has anyone replaced theirs with a generic sparker, most OE ones are silly money.

Thanks

 

[mike w]

Piezo unit tested as working. Looks like I will be dismantling the main control valve.
Has anyone performed this job?
At first glance, I assume I have to crawl underneath the motorhome

 

[Costers]

Mine takes its power from the leisure lighting circuit so the piezo- electric sparked won’t work unless I put the light circuit on at the control panel. Just a thought. Sorry if I am teaching you to suck eggs.

 

[alwaysared]

Piezo unit tested as working. Looks like I will be dismantling the main control valve.
Has anyone performed this job?
At first glance, I assume I have to crawl underneath the motorhome

Which model Truma?

Regards,
Del

 

[mike w]

Which model Truma?

Regards,
Del

Hi Del,
S3002

 

[argoose]

Piezo unit tested as working. Looks like I will be dismantling the main control valve.
Has anyone performed this job?
At first glance, I assume I have to crawl underneath the motorhome

You Tube shows four screw holding plate to floor and all comes out as one unit. Gas connection and flue connection best to renew sealing washers.. Loads of videos on there, watch a load, you will feel more confident.
Have you got good gas flow ?
regulators can get clogged with oil from gas bottles.