Truma boiler red light coming on (update)
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Motorhome Facts -> LPG / Gas

Author: Spacerunner

Location: Hampshire

PostPosted: Sun Jan 15, 2012 4:37 pm    Post subject:  

Later Truma Combi boilers work with or without water.
There may be some cutout via the frost protection auto drain valve, but as you are already getting water via the hot tap then that seems ok.

Author: bognormike

Location: Sunny Bognor

PostPosted: Sun Jan 15, 2012 4:42 pm    Post subject:  

rogerblack wrote:
Mike

Again an obvious one but just in case - do you have an external flue cover and if so have you removed it? Our Truma heater works fine with it in place on hookup but on gas we get exactly the symptoms you've described when I forget to clip off the external flue cover . . . as I always do!

Rog


thanks Roger, but no cover on it. Cool


thanks everybody for the suggestions; I'll have another look tomorrow, and does anybody know of any mobile engineers down this way?

Author: lydgate

Location: Lancashire

PostPosted: Sun Jan 15, 2012 4:43 pm    Post subject:  

I had a similar problem.

I found that if I turned the thermostat down so that the boiler only came on at its low setting it stayed on but if the thermostat was set to full the boiler went to the high setting and went out after five to ten minutes.

All the burners would light together and stay lit. It turned out that the regulator was starting to fail and would still allow the boiler to run on its low setting but not on the high. A new regulator has fixed the problem.

Gordon

Author: wp1234

Location: Isle of Anglesey

PostPosted: Sun Jan 15, 2012 4:44 pm    Post subject:  

Daft thought - are you level , my boiler hates not being on level ground.

Author: bognormike

Location: Sunny Bognor

PostPosted: Sun Jan 15, 2012 4:49 pm    Post subject:  

lydgate wrote:
I had a similar problem.

I found that if I turned the thermostat down so that the boiler only came on at its low setting it stayed on but if the thermostat was set to full the boiler went to the high setting and went out after five to ten minutes.

All the burners would light together and stay lit. It turned out that the regulator was starting to fail and would still allow the boiler to run on its low setting but not on the high. A new regulator has fixed the problem.

Gordon



that was one of the queries on the linked thread, Gordon. I don't think I have that problem, as I had all the hob gases running OK, but worth another look.

I think the regulator is after the T junction linking the Calor & gaslow cylinders, will have a look tomorrow Wink

Author: Spacerunner

Location: Hampshire

PostPosted: Sun Jan 15, 2012 4:50 pm    Post subject:  

bognormike wrote:
[


thanks everybody for the suggestions; I'll have another look tomorrow, and does anybody know of any mobile engineers down this way?


You could try Premier at Chichester, they always appear to be very helpful.

Author: bognormike

Location: Sunny Bognor

PostPosted: Sun Jan 15, 2012 4:51 pm    Post subject:  

wp1234 wrote:
Daft thought - are you level , my boiler hates not being on level ground.



not entirely, but never had a problem before...... Question

Author: bognormike

Location: Sunny Bognor

PostPosted: Sun Jan 15, 2012 4:53 pm    Post subject:  

Spacerunner wrote:
bognormike wrote:
[


thanks everybody for the suggestions; I'll have another look tomorrow, and does anybody know of any mobile engineers down this way?


You could try Premier at Chichester, they always appear to be very helpful.



yes, they've done work for me in the past. If necessary I'll take a run across there.

Author: Kev_n_Liz

Location: Leeds, Gods County.

PostPosted: Sun Jan 15, 2012 5:06 pm    Post subject:  Re: Truma boiler red light coming on

bognormike wrote:
After a month or so sat on the drive, I was getting our Stella ready for things, and was heating things up (or so I thought!). The heater seemed to work, with the orange light glowing, but after a short while there was a click & the red light came on.

It keeps doing this, and I have chekced things as per this thread
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there is gas in the gaslow cylinder (and the spare red calor), and the hob gases work ok with no reduction in intensity. From the checklist put up by RayC it would seem to be the problem is either with the gas supply or a bocked flue. The gas supply is oK to elsewhere, and nothing looks unusual with the flue (it vents outside just by the boiler, and nothing is likely to block it).


So, any ideas? I'm not comptetent to go checking anything other than the basic stuff, so it looks like a specialist job? Does anybody know of any mobile service engineers that do Trumas? Premier Mh's at Birdham are listed as agents, and I know they would be able to do it, but I would prefer someone who could come out to it.

It has C603 on the boiler, with the serial number (1999 year), the handbook is C3402 / C6002



Question


We have the same boiler Mike, it seems to be a low voltage problem on ours, but it usually goes away fairly quickly, so I'm assuming it might be a bad earth.

Author: Penquin

Location: Aquitaine

PostPosted: Sun Jan 15, 2012 5:12 pm    Post subject:  

Just checked on Truma site, heater can be operated WITHOUT boiler being full of water
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I knew I'd be wrong!!!!! Embarassed

Dave



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