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Truma Heater


Steve

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My van is currently back at the dealers having the Truma heater looked at as we are having problems keeping the temperature consistent on our 2004 van.

 

My dealer insists that in order for the thermostat to function properly I would need to select the "automatic" setting on the heater unit.

 

After reading several topics about this and after speaking to paul. b who has also had problems with his, heater I'm not convinced this is the problem and would say the fault lies with the control panel or the siting of the thermostat itself.

 

 

I've always thought that the automatic setting was to regulate the fan speed on the hot air blower system unless anyone knows different of course :unsure:

 

Thanks in advance

 

Steve

:)

                                                           Fiat Rimor Europeo 69P Motorhome

 

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My heater was sorted thanks to Tradetech and Garry of arc systems,

Garry is really the bees knees when it comes to anything like this. :)

 

It might just be worth phoning Truma about your problem, (heater and Dealer) it certainly helped when I had the same problem (heater and Dealer :angry: )

Paul B

. .......Mondeo Estate & Elddis Avanté 505 (Tobago)

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Problems of temperature control have been resolved by the fitting of a remote sensor, which is usually fitted under the shelf above the front windows. Some manufacturers fit these as standard, some don't, so if you have not got one fitted it may resolve the problem. If you search the forum, you will find other topics on this subject.

 

The fan should normally be on auto, as this allows the speed to rise and fall automatically as the heater cuts in and out. You can limit the maximum speed of the fan, if it is too noisy, by turning the outer speed dial down. However, I do not think there is any connection between the fan and the thermostat, so if you want to run the fan on manual i. e. constant speed, I don't see why you can't.

 

Brian

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Steve I have PM'd you with one of my posts, regarding the new control panel, when, after fitting the remote sensor it still didn't work

 

 

Look here

Paul B

. .......Mondeo Estate & Elddis Avanté 505 (Tobago)

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I do not think there is any connection between the fan and the thermostat, so if you want to run the fan on manual i. e. constant speed, I don't see why you can't.

 

Brian

41796[/snapback]

Hmm thats what I thought too - but it's difficult to argue this point with the dealer/fitter until I get the van back home :angry:

 

Paul thanks for the PM, I'll be giving Truma a call in the morning :)

                                                           Fiat Rimor Europeo 69P Motorhome

 

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First you must have a remote sensor fitted if the control switch which contains the original is fitted into the wardrobe side above the heater. What happens is the wardrobe gets hot, switches the heating off and it won't switch back on again until the wardrobe cools down!!!. A remote should not ideally be fitted under a pelmet as this also traps rising air and will not allow for perfect temperature control. I would say the best place for it is at floor level attached to the gas sides temperature sensor as that always works perfectly!

 

There is in my estimation regardless of the temperature sensor a fault with some control boards, this I believe is due to an anomaly with the control chip used and once switched off the parameters to switch back on again do not occur.

 

Under these circumstances as a work around it has been advised to put the heating on 1kw and the dial to 7 or above with the fan on automatic, this way it never switches off!!.. but I believe it does actually heat the van quite well. ..not tried it myself you understand, Iv'e got Carver heating!!

gary1s.gif

 

Arc Systems are specialist Carver caravan product repairers, committed to providing a comprehensive service as well as spare parts for these popular heaters.

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First you must have a remote sensor fitted if  the control switch which contains the original is fitted into the wardrobe side above the heater. What happens is the wardrobe gets hot, switches the heating off and it won't switch back on again until the wardrobe cools down!!!. A remote should not ideally be fitted under a pelmet as this also traps rising air and will not allow for perfect temperature control. I would say the best place for it is at floor level  attached to the gas sides temperature sensor as that always works perfectly!

 

There is in my estimation regardless of the temperature sensor a fault with some control boards, this I believe is due to an anomaly with the control chip used and once switched off the parameters to switch back on again do not occur.

 

Under these circumstances as a work around it has been advised to put the heating on 1kw and the dial to 7 or above with the fan on automatic, this way it never switches off!!.. but I believe it does actually heat the van quite well. ..not tried it myself you understand, Iv'e got Carver heating!!

41845[/snapback]

 

Hi,

 

Thanks for your reply, my sensor is fitted in the space directly above the fridge and this area does gets fairly warm when the fridge is in use, however I have tested it when the fridge is switched off and also unscrewed the whole assembly and had it hanging loose to eliminate false readings and I still get the problem.

 

Funnily enough I can get the sensor to switch off & back on fairly quickly by heating the sensor gently with a hairdryer to artificialy simulate what must be a massive rise in room temperature to the thermostat, I think this might tie up with your theory regarding parameters. ...what do you think?

                                                           Fiat Rimor Europeo 69P Motorhome

 

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I forgot to mention that any component part could be faulty and cause any one of a number of problems but these would be 'one offs' and not part of a trend which is what I was talking about before. It also occurs to me that the one I tested was 2002. .you would have thought any known problems would have been sorted by now??.

 

What you say about using a hairdryer is interesting in as much as I used pipe freezing spray!? which as I remember got the one I was testing working apparently perfectly.

The whys or the wherefores of doing this either very hot or very cold are difficult to understand if indeed there is an explanation, I did ask an electronics experts and he could not offer anything either.

gary1s.gif

 

Arc Systems are specialist Carver caravan product repairers, committed to providing a comprehensive service as well as spare parts for these popular heaters.

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I've just called the help desk at Truma and they are advising fitting the remote sensor at shoulder height in the first instance before they can comment further.

 

Yesterday our dealer tested the thermostat by finding the current setting which was number 6 in a warm van, then reducing it to 5 and opening the windows, and it apparantly switched itself back on which I found interesting but obviously it's not the way I wanted them to test it.

 

Awaiting latest results from dealer

                                                           Fiat Rimor Europeo 69P Motorhome

 

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The fitting destructions actually advise fitting close to the door at head height. .on a vertical wall. .. the fitting is 40mm, long??? it would be interesting to see how one could neatly get the wire connections back inside the van!!!

Common sense tells me the sensor will react quicker to temperature change at floor level where cooler air coming from an open door would be, however wherever the remote sensor is fitted if the heating switches on and off and an even temperature is maintained then all should be well.

 

Of course if all else fails I could supply a Carver. ..I nearly said equivalent, anyway I am sure it won't come to that <_<

gary1s.gif

 

Arc Systems are specialist Carver caravan product repairers, committed to providing a comprehensive service as well as spare parts for these popular heaters.

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The standard Truma unit (the control switch and combined stat) can and does work - we have a 2005 Abbey Freestyle and in that it is fitted on a panel between the worksurface above the heater and a cupboard.

 

And I can vouch for its effectiveness it keeps the van at the temperature that we desire whether that be during the day or over night when we just want to keep the chill out of the van - I am of course referring to these colder days and nights and not the 40 degrees that we experienced in the Lot Valley!

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My truma works perfectly now :)

 

Thanks to the help of Garry :D

Paul B

. .......Mondeo Estate & Elddis Avanté 505 (Tobago)

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Our dealer has now replicated the fault and has contacted Truma for advice.

 

They suggested trying a remote sensor first but my dealer was having none of it and Truma have agreed to send a new circuit board for the control unit.

 

If it does turn out to be yet another fault on the control board IMO Truma should issue a technical bulletin to it's Dealers :angry: we shall wait and see <_<

                                                           Fiat Rimor Europeo 69P Motorhome

 

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I'm glad you are having some success Steve, I hope it works. :)

 

Why they don't send remote sensor and control panel, to make sure is a mystery ;)

Paul B

. .......Mondeo Estate & Elddis Avanté 505 (Tobago)

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I had the same problem and had a remote sensor fitted under warranty. The heater works fine now.

Tom.

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I had the same problem and had a remote sensor fitted under warranty. The heater works fine now.

Tom.

41970[/snapback]

 

Did the old stat eventually turn on after the entire van had cooled down - in other words was it just not providing a constant temperature?

                                                           Fiat Rimor Europeo 69P Motorhome

 

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Why they don't send remote sensor and control panel, to make sure is a mystery ;)

41969[/snapback]

 

Hmm, good point - I think it tells it's own story if I'm thinking what your thinking :lol:

                                                           Fiat Rimor Europeo 69P Motorhome

 

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http://www. touringandtenting. com/forums/style_emoticons/default/no. gif

I'm glad you are having some success Steve, I hope it works. :)

 

Why they don't send remote sensor and control panel, to make sure is a mystery ;)

41969[/snapback]

 

 

Hmm, good point - I think it tells it's own story if I'm thinking what your thinking :lol:

41973[/snapback]

 

What at £60 a throw. .Not on you life

I did say after two years you would have thought it was sorted well I asked a large dealer this afternoon. .. :lol:

gary1s.gif

 

Arc Systems are specialist Carver caravan product repairers, committed to providing a comprehensive service as well as spare parts for these popular heaters.

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It's crazy that this problem is still occuring with recent vans.

 

I had this problem on my 2001 Pageant. Through CaravanTalk and thanks to Tradetec, Arc Systems and others, I fitted a remote sensor and the cure was instant.

 

Do caravan manufacturers wonder why we ridicule them for having totally ineffective design & development departments? It's a pity some of them don't read this forum even if they're not brave enough to comment.

 

I fitted my sensor on the face of the front locker. The cable had to be extended but that was easy.

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To make matters worse it looks like I wont be getting parts in time for our next outing at half term, so it's yet another trip back to the dealers on our return - and they have had it a week already :angry:

                                                           Fiat Rimor Europeo 69P Motorhome

 

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Over the past weekend we decided to use our heating as it got a bit nippy. I think the last time we sued the lectrical side of the heating was in April 2005. Although we have the remote sensor mounted on a "wall" by the door, the heating does not switch back on until the van is nearly freezing.

In addition, we also discovered that the gas heater does not work at all so a quick warm up iof the van was out. Off to the dealer again on Wednesday. These truma heaters do not appear to be effective or reliable on electric and I suspect it has something to do with the way the thermostat is fitted.

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I'll let you know what happens as I'm having a new control board fitted tommorow.

 

I think you have a different fault to mine as I couldn't get mine to switch back on at all, but of course this situation may change again once the new parts are fitted and I might then have a new issue with the stat because of where its fitted (above the fridge) :( sorry to sound negative but I really am running out of patience with this lot :angry: btw the stat is supposed to kick in +/- three degrees :lol:

                                                           Fiat Rimor Europeo 69P Motorhome

 

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I found the stat when it did work worked better than that, consistently on two degrees temperature change either way. It struck me at the time in theory it should keep a very even temperature in the van!!

gary1s.gif

 

Arc Systems are specialist Carver caravan product repairers, committed to providing a comprehensive service as well as spare parts for these popular heaters.

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I found the stat when it did work worked better than that, consistently on two degrees temperature change either way. It struck me at the time in theory it should keep a very even temperature in the van!!

42337[/snapback]

 

Sound good to me, but I think I'll be bringing a small oil filled radiator for the half term trip just in case :lol:

                                                           Fiat Rimor Europeo 69P Motorhome

 

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location,location,location is the overiding factor in this topic, too many manufacturers fit the control in the wrong place. the remote sensor cures the fault in98% of cases.

 

if it doesnt work tell your dealer and demand a remote sensor

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