Truma heater boiler

 
 
 
 
 
 
serious3
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Truma heater boiler

 ·  Posted: 07.04.2014  ·  #1
Can't seem to get any hot water from the truma water heater thingy, the heater works from the thermostat and blows hot air but the boiler just puts water out underneath the van? Previous owner said something about the red button needed to be up for it to work
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #2
Yes your dump valve is open.
Pull up and fill boiler with water.
You might need to hold valve up until water level in boiler rises
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #3
Dump valve is to stop the contents freezing in cold weather, it automatically dumps it on some vans, others it has to be opened manually.
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #4
serious3
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #5
well i held the valve up for about 2 mins with the pump running and it still wont stay up the second you let go it dumps the water out underneath so that means summats fubared
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #6
Should it not be down? Up to empty? It might not be an automatic one. I can't remember and mine is different.
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #7
We'll it won't stay up and up or down it pumps to the outside!
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #8
After reading my German instructions and using google translate you pull up the red knob to close the valve then you open the taps to hot and fill the boiler till all the air is exhausted from the system and that's it good to go, only trouble is mine won't stay up...... (Ooh-er missus!) gonna check the little fuse inside the control as I'm getting a solid red light on the panel
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #9
Can you try a clothes peg to hold it up?
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #10
Is the van warm enough as they dump the water below 8deg, try blowing warm air via heater or hair dryer at it first.
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #11
Ours acts the same as yours, I put a key ring on the top of the valve and connect it to a small bungee bicycle carrier tingy and releases after a few hours and it stays up then.
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #12
Ooh I like bodges! I'll try them tomorrow thanks
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #13
Quote by the fat controller

Is the van warm enough as they dump the water below 8deg, try blowing warm air via heater or hair dryer at it first.


Yes there is a temperature sensor on the side wall on the inside of the van on ours which activates the dump valve in cold weather, as John said you could try a small bit of heat on that.
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Re: Truma heater boiler

 ·  Posted: 07.04.2014  ·  #14
Turn on the heating for a few seconds and let the boiler fill at the same time it should keep the dump valve closed, my one does anyway,

It seems to over ride the temp sensor when the heating is turned on but make sure you are letting the boiler fill at the same time as it's not recommended to run the heating with the boiler empty,
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Re: Truma heater boiler

 ·  Posted: 08.04.2014  ·  #15
Did you get sorted? :up:
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Re: Truma heater boiler

 ·  Posted: 08.04.2014  ·  #16
Didn't get chance yet today, life got in the way!!!!
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Re: Truma heater boiler

 ·  Posted: 08.04.2014  ·  #17
Quote by serious3

Didn't get chance yet today, life got in the way!!!!


Yeah it does sometimes! :'(
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Re: Truma heater boiler

 ·  Posted: 08.04.2014  ·  #18
just a thought but would gas supply/pressure have anything to do with it along with only one ring lighting on the cooker and the fridge not lighting on gas/mains/battery? i'm getting the red light on the truma control panel too
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Re: Truma heater boiler

 ·  Posted: 08.04.2014  ·  #19
Might seem a stupid question but do you have any gas. There could be a blockage in the gas line/regulator but it won't stop the boiler keeping water in it
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Re: Truma heater boiler

 ·  Posted: 09.04.2014  ·  #20
I have gas and the heater works fine and hot
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Re: Truma heater boiler

 ·  Posted: 09.04.2014  ·  #21
Might be a good idea to get the gas system tested and serviced, the red light says there is a fault but that can be anything from no gas to circuit board problems. The lack of gas pressure allowing the cooker and fridge to light correctly means there is either a leak or lack of supply. I don't think you are supposed to heat the boiler without water, but warmth is required to get the dump valve to stay closed.
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Re: Truma heater boiler

 ·  Posted: 09.04.2014  ·  #22
We'll the service man came and he pronounced that the gas supply is good but the pop up switch is fubar'd..... He says to use a clothes peg! Cooker is now on two rings as it was crudded up, bad news is the fridge is fecked as the compressor is not working grrrrr
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Re: Truma heater boiler

 ·  Posted: 09.04.2014  ·  #23
That's what I said, a clothes peg. :D
Camper fridge doesn't usually have a compressor.
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Re: Truma heater boiler

 ·  Posted: 09.04.2014  ·  #24
How does a 3way fridge work without a compressor then?
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Re: Truma heater boiler

 ·  Posted: 09.04.2014  ·  #25
Just wait until the see the price of a new fridge for the camper perhaps time to start looking at a second hand one.
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Re: Truma heater boiler

 ·  Posted: 09.04.2014  ·  #26
Quote by serious3

How does a 3way fridge work without a compressor then?



Unlike domestic fridges, caravan fridges have no compressor hence using less power to achieve the cooling effect. Instead, a strong ammonia and water solution is heated in a boiler. This causes the ammonia to evaporate. This gaseous ammonia is passed through an air cooled condenser where it condenses into liquid ammonia. This liquid passes though a small hole where it evaporates. As it this, it cools down drawing heat away from the fridge.
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Re: Truma heater boiler

 ·  Posted: 09.04.2014  ·  #27
Hmmmm still won't work on electric tho, boiler works with the peg holding it up anyway!
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Re: Truma heater boiler

 ·  Posted: 09.04.2014  ·  #28
Quote by serious3

Hmmmm still won't work on electric tho, boiler works with the peg holding it up anyway!


A solution of sorts! :up:
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Re: Truma heater boiler

 ·  Posted: 09.04.2014  ·  #29
Quote by serious3

We'll the service man came and he pronounced that the gas supply is good but the pop up switch is fubar'd..... He says to use a clothes peg! Cooker is now on two rings as it was crudded up, bad news is the fridge is fecked as the compressor is not working grrrrr



Who was service man? Was he a proper service technician that works on motorhomes/caravans or was he the local fix it man?

It he was the latter I'd get a second opinion if I was you, could save you a lot of hassle and money,
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Re: Truma heater boiler

 ·  Posted: 14.04.2014  ·  #30
Ok after a bit of googling and thinking, I'm conducting an experiment in that I've put the fridge on 240v power this evening to se what happens over night, I'll report back in the morning
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Re: Truma heater boiler

 ·  Posted: 15.04.2014  ·  #31
We'll the fridge is cold! 8-) sort of..... Think it might be time to remove and leave it upside down for 20 mins as suggested by numerous people on various forums
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Re: Truma heater boiler

 ·  Posted: 15.04.2014  ·  #32
While you have it out check the gas jet for a blockage and give around the burner a bit of a clean as that may sort the fridge out.
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