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Subject Topic: Truma Thermostat Fix
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27/7/2015 at 4:36pm
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Hi
Just noticed there was no heat coming out of the truma heater when I noticed the green light on the thermostat was not on. Everthing else works with the heater so obviously the thermostat is the issue. Im pretty new to caravans so dont know where to start with regards what to check with the thermo. If someone could give me some easy to follow checks it would be much appreciated.Its an Ace Jubilee 2003 if that helps.
Thanks


27/7/2015 at 8:22pm
 Location: West country
 Outfit: Mondeo
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It may be that the caravan is warm enough and doesn't need any heat so the thermostat won't turn the heater on.

Turn the thermostat to highest temperature.

Not sure what your set up is but you need the fused spur feeding the electric heater switched on. Alternatively you need to light the gas.


28/7/2015 at 11:21am
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I've turned the thermostat all the way up and still no heat. The green light on the thermostat just doesn't come on. Works fine on gas.


28/7/2015 at 4:33pm
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Assuming the ususal, plugged into an EHU, power to the heater turned on etc , do you have power to the switch?


28/7/2015 at 6:00pm
 Location: South Wales
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Presuming that you have the fused spur on, that the fuse in that is fine and that the switch is working, the next thing to check us if the vtafe is reaching the pcb board then if it is then it's certainly the board that failed.


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28/7/2015 at 6:11pm
 Location: Near Alton Towers
 Outfit: Bailey+Burgundy+S7+H
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I think you could glean some info from another member's post regarding a similar topic a couple of days ago.
(Trauma ultra-heat 230v) His turned out to be a blown transformer on the control PCB, no low voltage out therefore no green light on the stat and no control to the rest of the circuit.

Dave

-------------
Never argue with an idiot, they will drag you down to their level and beat you on experience.
Mark Twain.


28/7/2015 at 7:53pm
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Thanks guys i will check it out.


30/7/2015 at 9:01pm
 Location: ipswich
 Outfit: eldiss storm crusader
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Hello with my truma ultra heat there is two thermo stats On the electric side the fire has to be removed by a qualified gas fitter to replace the themo stats are cheap but as the seal has to be broken you need help I hope that helps it is what was wrong with mine


31/7/2015 at 2:51am
 Location: South Coast
 Outfit: Cotswold Windrush 112
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Sorry I need to correct you mercydt, you don't need to be a qualified gas engineer to do any work to gas appliances on a mobile caravan, however it should be carried out by someone who is competent and tests joints for leaks.
The only recognised gas qualification is gas safe ... previously known as corgi which only applies to household gas installations, for unknown reasons it doesn't apply to commercial buildings or touring vans.

-------------
1st stop Brands Hatch
2nd stop Thruxton
Last Stop Brands Hatch
Next Stop Bournemouth Air Show


31/7/2015 at 9:56am
 Location: ipswich
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Thank you the reason I said gas engineer is simply to be safe I would not like split hairs over safety thanks windrush



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