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Guest iank

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Hi,

We have a Truma in our 2004 van but I find it to be ineffective. When one turns on the heating (electric) initially it warms the van nicely and then when it reaches a specific temperature it switches off which i assume is the thermostat kicking in. This is fine as you do not want to get too hot, however the van then cools down to the point where it starts to feel cold, but the thermostat does no kick in again properly. There is still heat radiating from the heater but althoug the heater is on high it is asa if the heater is set to low. I then rotate the inner temperature knob and the heater kicks in again until it reaches the set temperature kicks off and the whole saga is repeated again. I fitted a remote sensor but this does not help very much. In our 1991 Eccles the temperature stayed up and the heater switched on and off automatically. Does any one else have this probem with heating? We have a Lunar Lexon model. :(

Thanks

Ian

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Guest john1215

There was a post about this very issue on the old board, the problem is not that a thermostat is fitted, it is more the position that it has been fitted in.

So far I haven't suffered the problem so I can't say either way what to do but there are those much more qualified than I am to give a good answer.

 

john1215

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Blimey Ian. .you get about a bit. ..third time?..are you on many other forums??

 

Quote "Anyone else with a similar problem"

 

Might go down as the biggest understatement of all time??... although the remote sensor should cure the great majority of problems with this heater, there seems to be another. ..yours.

 

I am currently investigating this exact problem of 'not switching back on' and your feedback would be most welcome as all I have to go on is relayed though a dealer.

 

As I understand it your heater with the remote fitted will work OK above 7 on the dial but not below this and once it switches off it will not come back on again unless 7 or above is set on the dial. ..is this correct?.

 

Fitting the remote cures the problem of control switch position and hence the original position of the temperature sensor which is within the switch. The problem here is the temperature at the back of the switch effects the temperature more than the temperature it is supposed to measure in the living area. The temperature in the wardrobe perhaps reaches the temperature set and the fire switches off, the wardrobe then and everything in it including the fire itself has to cool down before the thing will switch back on again!!. Once the remote is fitted in a more sensible position this problem should disappear. ..and for the most part it does. Problem you have has I think nothing to do with this, although fitting the remote may improve matters somewhat. ..Anything more you can tell me??

 

Maybe you could also copy and paste your answer on here as well??

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 had a problem with ours on New year, it turned its self off in the night, completely

 

It was b&^%$ cold, so we put it in gas, it did the same the next night? <_<

 

Through the day we had it on with no problems, never had a problem since I fitted the remote sensor, until then.

( the sensor is under the pelmet well out of the way of the heater)

 

Still we had a very good New Year :D

 

 

suppose its more of an inconvenience than a problem.

 

Paul

 

Could it have turned itself off because the fan was on too low??????

Paul B

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

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Have had the same problem in the Lunar Lexon EW of reluctance to switch in and out with the thermostat set at less than 7, also experienced over the New Year period where the wife insisted some heating was left on overnight.

Not a problem during the day, she insists on having the thermostat set hard on the top stop with electric on 2kW and gas also running to ensure 'blanket' heat - Whew!!

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Thanks you two. ..this is starting to confirm what I have been told. ..keep um coming :D

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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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Gary

 

You seem too be suggesting that the wardrobe is acting as a heat store and so maintaining the temperature on the thermostat. Instead of re-locating the thermostat, would it be worth mounting it on a plate away from the wall so allowing it to cool with the air temp? This might save a rewire. By the way, can't you sleep (1 AM posting?)

 

Mike

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Gary

 

You seem too be suggesting that the wardrobe is acting as a heat store and so maintaining the temperature on the thermostat.   Instead of re-locating the thermostat, would it be worth mounting it on a plate away from the wall so allowing it to cool with the air temp?  This might save a rewire.    By the way, can't you sleep (1 AM posting?)

 

Mike

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Surely if the wardrobe is acting as a heat store and maintains the temperature on the thermostat wouldnt the simple solution be to leave the wardrobe door slightly open - my heater is below the wardrobe and I dont seem to have a problem - must be the thermostat is in a different place !!!

 

Margaret

Margaret

 

I don't do technical !!!

Just me and my showdogs!!

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Yes leaving the door open would work and as a temporary solution or to test for the problem it is a good idea, the point is though you should not have a problem. ..although Margaret you may well have the remote sensor fitted and this should cure this particular problem. However there seems to be another problem beyond this which is, once the thermostat has switched off. ..it will not come on again regardless of temperature, with or without remote!. This is if the dial is set below 7. ..seems to work fine above this.

I have been aware of the first very common problem for a while and to be fair it is not Truma's fault that caravan manufactures choose to fit control switches where Truma tell them not to!!. This second fault though is quite new to me and getting feed back on here is helpful as to how widespread it is. ..up to now what was suggested is fitting the remote is the 'cure all',while in fact it it would seem this is not the case. ..leaving some owners out in the cold

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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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id just like to praise  Gary (Arc) in his 100% spot on accuracy  of this topic, i cant comment anymore  as gary has hit the nail firmly on the head, nice one mate. Ste ;)

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Thanks but yes you can. ..you can tell what you have found. .is it that it works OK above 7 but not below??. I think John was suggesting his would not switch back on until turned up from any setting??. Point is that problem is easy. ..it's if it half works right that it gets complicated

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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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Mine does seem to work below 7. On a cold night, I leave the heating on but turn it down to around 5 just to take the chill off. My Pageant came with the remote fitted as standard by Bailey - located under the top locker by the front side window, which is well away from the heat source. I do find setting the control to be very sensitive. A small movement causes a big change in temperature. Normally its set around 6. 5

 

Brian

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The problem is that more and more people are using their vans all the year round as its a large expense to be sat there doing nothing for 6 months of the year. the heaters are designed to warm up the van on a cool summers evening and not in the dead of winter. The manufacturers need to catch up on this a produce a heater to fit the circumstances.

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The problem is that more and more people are using their vans all the year round as its a large expense to be sat there doing nothing for 6 months of the year. the heaters are designed to warm up the van on a cool summers evening and not in the dead of winter.   The manufacturers need to catch up on this a produce a heater to fit the circumstances.

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Not really this heater which is fitted to ALL vans now. ..you don't have a choice??, is 3. 5kw on gas and 2kw on electric. ..both together will cope with anything. A point though is you need to get the structure of the van warm first before relying on electric alone. .this would tie with what you are saying.

I thankfully have the Carver version. .same output but different control. ..it works perfectly. The only problem I do have is keeping Linda's fingers off the heat settings!!...otherwise I get cooked??

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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 have the remote stat fitted (thanks Steve & Garry).

 

The first night it was too hot in the caravan, :o so we did turn the heater down for the other nights, this is when it went off. :(

 

In the day folks were coming in and out of the caravan so it was on full with no problems

 

Paul

Paul B

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

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Yep. ..and I think I have the problem solved. ...certainly dispelled the myths anyway. It would seem there is a batch of faulty control boards, this is on the back off the fire and is where the remote plugs into. Once the electric heating switches off it will not switch back on until physically turned up. The thing about working above 7. ..26c!! is because it never gets there. .so never switches off

While investigating I did find this out which would apply to all. ..putting a temperature to the numbers on the dial. I have mentioned 7 but picking 5 to start with a remote stat fitted is 18c and 6 is 22c. ..so 4deg between each number and it switches on and off every 2 degrees. Given this 'tight' temperature control. .it should work beautifully and keep a very even temperature in the van???. Without the remote, 4 is 16c. ..so the numbers vary slightly, 1 being 4degs which would be handy for frost control.

Another spin-off is this. ..there is no point in messing about fitting the remote at shoulder height as Steve was told to do or head height above the door as is suggested in the instructions. ..it's just adding work!!. The sensor will operate just as well or better if fitted at floor level where it will react faster to temperature change.

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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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Hi Gary,

Can you please clear up a little confusion in my mind - getting old you know!

 

I have fitted the Truma remote sensor (FF2) just near to the top of the entrance door. This has been very successful in controlling the heat but my confusion is this:

 

When the remote is plugged into the back of the fire control box does it cut out the thermostat AND the temperature control knob in the bed-box mounted control panel? Or does it just cut out the thermostat and leave the temp control knob operational?

 

Cheers

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Hi Gary,

Can you please clear up a little confusion in my mind - getting old you know!

 

I have fitted the Truma remote sensor (FF2) just near to the top of the entrance door. This has been very successful in controlling the heat but my confusion is this:

 

When the remote is plugged into the back of the fire control box does it cut out the thermostat AND the temperature control knob in the bed-box mounted control panel? Or does it just cut out the thermostat and leave the temp control knob operational?

 

Cheers

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The latter Bob, it works just the same as plugging earphones into a radio. ..connects itself and disconnects the other. ..and visa-versa. Just like the radio, the volume control still works. ..infact the temperature control is a potentiometer as is the volume control??. It has also been suggested that plugging in the remote 'blows' the original one in the control switch, meaning once fitted the remote must stay. ..this is one of the myths and is nonsense.

I am sure the remote will work above the door. ..what I am suggesting is taking the trouble to fit it there is a waste of possibly expensive time. All it needs to be is in a position where it measures the general air temperature and away from any direct heat source.

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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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Gary,

    Is the jack plug 2. 5mm or 3. 5mm. I presume that it is a mono plug. I am still trying to locate a 10k bead thermistor to knock up a sensor. Maplin don't stock this value. :(

Thanks,

Frank

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3. 5mm mono is the size and type of jackplug. Maplin don't stock them is right I made a mistake. ..it's Farnell in Leeds, part number 265-690. I have made one up today for testing and it works perfectly

 

Loom.jpg

post-22-1105723384.jpg

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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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Just a thought,

if we put the heater to 1000 watts or 500 watts, and on to full, maybe that it would not get to temp, and stay on. <_<

 

suppose we will just have to go away in it again, :D:D

 

Paul

Paul B

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

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Bang on Paul. .that's the reason why sometimes it seems to work and sometimes not. ...because if it don't switch off. .

I bet Ian will be along in a while with a well thought out explanation from ~Trauma. .:lol:

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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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Wow, and what a letter,

well done Ian :D

 

Paul

Paul B

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

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