TRUMA HEATING POSER

Mickey1

Mickey1

Joined
Nov 23, 2015
Posts
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Location
Newmarket,Suffolk
Funster No
40,364
MH
Benimar294
Exp
Newbie
The heating clicked off with the code H202 but I have gas in both bottles. The poser is, it works on the 11kg bottle, but turns off with the code on the 6kg bottle . Any advice appreciated.

Mickey
 
Leave both bottles open and see if ok.
 
How full is the 6kg ? I assume it's propane.
If refillable where did you last fill up?

Combi's need a high gas flow rate if the 6kg one is getting low it probably won't be able supply the flow rate. If you filled up in southern Spain when the weather was warm you probably filled with 65% butane and that won't work in this weather once the propane has gased off.
 
Thanks for replies, I did fill up in spain, but it was morning and certainly not warm, it’s odd because it works the cooker.@Lenny HB , I’m still in Spain.

Mickey
 
Mickey1 said:
Thanks for replies, I did fill up in spain, but it was morning and certainly not warm, it’s odd because it works the cooker.@Lenny HB , I’m still in Spain.

Mickey
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It isn’t odd at all it’s perfectly normal. The simple explanation is that in order to produce the gas from the liquid heat must be absorbed through the cylinders walls ( latent heat ).
Now the bit that most people won’t believe is that the amount of gas any cylinder is capable of producing ( Offtake rate ) is directly related to the surface area of the cylinders.
So a 6kg cylinder of propane is theoretically able to provide approximately 10kwh but a 13kg will provide approximately 15kwh , but for Butane these figures are much lower and combined with low temperatures Butane will become useless.
Even Propane slows in cooler weather.

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Mickey1 said:
Thanks for replies, I did fill up in spain, but it was morning and certainly not warm, it’s odd because it works the cooker.@Lenny HB , I’m still in Spain.

Mickey
Click to expand...
Cooker doesn't need anything like the flow rate the Combi does. I reckon a lot of butane in the bottles is your problem, even though butane will work with the cooker often well below 10° you will be lucky to for the Combi to work anything like that low with butane it's not the gassing off that's a problem it's the flow rate.
If you are near Portugal nip across and fill up there 95% propane, I always try to avoid filling up in France & Spain.
Uk, Belgium, Holland, Germany, Austria & Portugal are all 95-100% propane. France and Spain the percentage of Butane varies on the time of year.
 
Thanks again, @Lenny HB , I’m in Benidorm for another week then making my way home, I’ll just have to hope the next fill cures it. I also remember reading on this forum where the pump was cutting off before the bottles were full.

Mickey
 
@Blue Knight Thanks for the link, After reading your post I realise I’m almost having the same problem as in the codes you mentioned, I’ve had exactly the same codes. I say almost because mine will work when the 11kg bottle is being used. I also tried turning up the temp and high fan on the 6kg bottle, it starts up but after a while shuts down.

Mickey
 
Mickey1 said:
@Blue Knight Thanks for the link, After reading your post I realise I’m almost having the same problem as in the codes you mentioned, I’ve had exactly the same codes. I say almost because mine will work when the 11kg bottle is being used. I also tried turning up the temp and high fan on the 6kg bottle, it starts up but after a while shuts down.

Mickey
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The combination of the three error codes (at different times) indicated that the primary twin gas valve was not operating correctly. The main gas line is attached to the twin valve which in itself is composed of a 4kw valve and a 2kw valve and it was one of these which failed.

My 6E needed to be removed from the van so it's a big job.

Good luck (y)

Andrew

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Update on my heating/gas, I filled up on Saturday morning, using the 6kg , maybe heating on a couple of hours a day and also using the hob everyday, it lasted until last night and I got the 202 warning, so 4 days, does that sound ok or should it have lasted longer. When I filled it took 20 lts.

Mickey
 
Thanks @Lenny HB , knew I could rely on you, I guess that’s the same for the hab batteries, landed at this aire yesterday and decided to stay until tomorrow, very little sun, only charged iPad and iPhone a couple of times and Its showing just over 50% left.

Mickey
 
@Lenny HB , the 20lts was for the 16 days I stayed at Benidorm, the 6kg ran out after 4 days then I turned on the 11kg for the remaining 12 days, how does that sound?.

Mickey

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Sounds fine to me , we use a 6kg in a day and the 11kg in 2 days in cold weather.
 
Thanks for all replies, at least it’s not faulty, this Motorhoming isn’t such fun if the suns not shining.

Mickey
 
I would echo the answers above.

In cold weather we experienced the same problem and fault Code. Switching to the other (also 6kg bottle) solved the problem.

Although the first cylinder was not completely empty it was clearly not given a sufficiently high gas flow. When it was changed for a full one it was also OK.

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@maison , that’s what was bugging me, the cooker still worked but no heating, I’m happier now I know it’s not a fault, now the hab batteries are bugging me, oh well, soon be Christmas.

Mickey
 
So a 6Kg bottle really isn't good if you have a 6kw gas heater for winter use.
 
jezport said:
So a 6Kg bottle really isn't good if you have a 6kw gas heater for winter use.
Click to expand...
No, not really but, in a PVC we only have room for 2 x 6kg cylinders.

However, although we use Aires in France and wild camp during the summer, in a British winter we tend to use sites with EHU.

We find that running the Truma heater on “Mix 2”, ie gas and electric together it stretches the gas supply considerably.
 
We filled up in Tarifa last winter and the heater played up until we had got rid of the last fill put it down to more butane in the mix.:xThumb::xThumb::xThumb: Shan’t be filling up there again.:xdoh:
 
Mickey1 said:
@maison , that’s what was bugging me, the cooker still worked but no heating, I’m happier now I know it’s not a fault, now the hab batteries are bugging me, oh well, soon be Christmas.

Mickey
Click to expand...
The Combi needs a high flow rate so will stop working long before the cooker. Try not to fill up in Spain or France as can have up to 65% Butane, if you are going to fill up in Spain do it in the mountains were its cold you will then get a high propane mix. France should be OK at this time of year.

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We have found Repsol stations to be ok never had trouble with their gas:xThumb::xThumb::xThumb:
 
maison said:
No, not really but, in a PVC we only have room for 2 x 6kg cylinders.

However, although we use Aires in France and wild camp during the summer, in a British winter we tend to use sites with EHU.

We find that running the Truma heater on “Mix 2”, ie gas and electric together it stretches the gas supply considerably.
Click to expand...

I have a PVC, and went for an under slung gas tank, plenty of room underneath.
 
More confusion, the second bottle ran out on the last morning of my trip, so I now have 6kg and 11 kg empty, now I know I’m new to this but when I filled it only took 21.6 litres and I thought it should be 30+ litres, is there a problem with the bottles or the Truma heating?.

Mickey
 
Mickey1 said:
More confusion, the second bottle ran out on the last morning of my trip, so I now have 6kg and 11 kg empty, now I know I’m new to this but when I filled it only took 21.6 litres and I thought it should be 30+ litres, is there a problem with the bottles or the Truma heating?.

Mickey
Click to expand...

I'm not sure if it's the same Mickey but I've just filled my 2 x 11kg Gaslow tanks from empty and they stopped at 42-litres for the pair, albeit the destructions do say a maximum of 44 for the two.

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