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try checking 12volt DC supply to unit, is the voltage dropping when running.Try a 12volt battery on to it there might be fault on your motorhome 12volt supply.Red light comes on when starting if the 12volts supply drops
You say that the regulator is OK but your symptoms are identical to an issue we had recently in Spain.
The hob would work on gas, the fridge would work on gas, but as soon as we tried the hot wateror heating we got the same symptoms: whorringof the fan, spark of ignition adn a thump as the systemignites and then 10-20 seconds later eveyrthingwould fail.
Have you got a Truma regulator?
If you have my money's on it being clogged up with oil.
We stripped out the regulator and tried blowing the oil out with a compressor. Despite blowing out a bit lump of gunk it would still not work.
We eventually found a place near Faro who fitted a new regulator and the problem was sorted.
Ours was a Truma Secumotion regulator which is renowned for this problem. We replaced with a simple regulator so we now have to turn the gas off at the cylinder when we drive but that's no big issue.
For the full saga see the original thread:
cannot help but bump you up.contact them direct and ask what the *ell is going on as you could have bought a new one by now.
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thinking about it that just the recent money spent on the system. Now they think that it might be sludge in the gas inlet. Seems that the gas solenoid is blocked again even though it was only swapped thursday. Spoke to Truma today and they said it is a 12 year old heating system sir. They usualy only see vehicles at their premises when they are within the warrenty period, what a joke they are.
You say that the regulator is OK but your symptoms are identical to an issue we had recently in Spain.
The hob would work on gas, the fridge would work on gas, but as soon as we tried the hot wateror heating we got the same symptoms: whorringof the fan, spark of ignition adn a thump as the systemignites and then 10-20 seconds later eveyrthingwould fail.
Have you got a Truma regulator?
If you have my money's on it being clogged up with oil.
We stripped out the regulator and tried blowing the oil out with a compressor. Despite blowing out a bit lump of gunk it would still not work.
We eventually found a place near Faro who fitted a new regulator and the problem was sorted.
Ours was a Truma Secumotion regulator which is renowned for this problem. We replaced with a simple regulator so we now have to turn the gas off at the cylinder when we drive but that's no big issue.
For the full saga see the original thread:
Only registered users can see links on our Forum Join Now or Login
I am going to check it shortly, i am sure the 12 volt supply is fine as batteries are new and never had an issue with power, i can see the batteries are sitting at around 12.8v. As for Truma regulator i believe i have calor for Butane, propane i am not sure and my LPG on board tank its a green regulator. What i am wondering is that it might be a small piece of rust or debris that has escaped from the inside of LPG tank and passed through the fuel lines jamming the gas soleniod. Still i have a seperate issue on two new pcb boards being fitted to this vehicle within six months as the previous owner had one fitted. At least i have the ond one but the new one still does not cure the problems, neither does a new burner, wiring loom or anything else.
Spoke to Truma today and they said it is a 12 year old heating system sir. They usualy only see vehicles at their premises when they are within the warrenty period,
well tell them that this is not a usual problem and their technitions are failing in their attemp to cure the fault and are replacing parts in an effort to cure the fault.
Spoke to Truma today and they said it is a 12 year old heating system sir. They usualy only see vehicles at their premises when they are within the warrenty period,
well tell them that this is not a usual problem and their technitions are failing in their attemp to cure the fault and are replacing parts in an effort to cure the fault.
cabby
If i cant sort it someone is going to be refunding me a lot of money, i just had an add up £1,505 is the total since November, i guess i could name and shame the dealer, supposed to be Truma trained, this is beyond stupidity. As i said it seems to me that they have swapped everything until something worked and at my expense. Problem is now it has all been swapped and still not working. I could have purchased a new system and sold the old one on. I also have lots of spares that i am convinced still work.
You say that the regulator is OK but your symptoms are identical to an issue we had recently in Spain.
The hob would work on gas, the fridge would work on gas, but as soon as we tried the hot wateror heating we got the same symptoms: whorringof the fan, spark of ignition adn a thump as the systemignites and then 10-20 seconds later eveyrthingwould fail.
Have you got a Truma regulator?
If you have my money's on it being clogged up with oil.
We stripped out the regulator and tried blowing the oil out with a compressor. Despite blowing out a bit lump of gunk it would still not work.
We eventually found a place near Faro who fitted a new regulator and the problem was sorted.
Ours was a Truma Secumotion regulator which is renowned for this problem. We replaced with a simple regulator so we now have to turn the gas off at the cylinder when we drive but that's no big issue.
For the full saga see the original thread:
Only registered users can see links on our Forum Join Now or Login
Hi there, tried as you suggested, voltage is 13.4 with engine off 14.2v engine running on tick over, disconnected lpg reg and gas lines, places some kitchen roll over them to check for debris and dirt right up to the off tap for the boiler, completely clear. The only part i cannot check is from the back of the boiler to the other side of the stop tap, did this for both the butane and the LPG system. just had an operation and hard to bend down to the last meter of pipe. will see what feeble excuse the dealer can supply tomorrow as he now informs me that he is very busy.
Spoke to Truma today and they said it is a 12 year old heating system sir. They usualy only see vehicles at their premises when they are within the warrenty period,
well tell them that this is not a usual problem and their technitions are failing in their attemp to cure the fault and are replacing parts in an effort to cure the fault.
cabby
I have a pile of working parts that i have been charged for, nothing wrong with any of them. Off to Truma tomorrow as booked in for 08:30, will see what they have to say, presently they are saying that it is very hard to diagnose a fault over the phone. I had a friend return the PCB from his address and have a report from the Same Truma that there is nothing wrong with it so will present this after they attempt to sort the problem. Fans that have been replaced are all working too without any faults, even the burner if fine, new wiring loom too along with everything else. The only thing i have not had replaced is the outer casing.
I had a great day today with the guys at Truma. They did a gas safety check before starting and notice i had a gas leak, kindly fixed that for me in the process, checked all regulators for butane, propane and my on board LPG. . The removed my boiler with the upmost care, took me into their workshop, explained every step of what they were doing, it took them a little over ten minutes to dismantle the boiler. Turned it upside down and out popped half of a snapped 8mm drill that was shorting out the electrodes hence the boiler kept shutting down. While they were there they replaced the top lid and everything else that had not been swapped.
Fully tested and replaced. Thank you Rruma Technical what a great team you are
They even tested my old PCB, no fault found, just goes to show dealers swap and charge at will. Parts now being returned to my local dealer for a full refund.
What i would like to say i cannot as i can’t prove who broke the drill and left it on the new burner.
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