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truma c combi boiler problems


knaus01

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Fill a hot water bottle and stick it next to the cylinder. Cover warm bottle with a cloth to stop heat escaping away from it. Lagging the cylinder does not help. As the LPG boils off from a liquid to a gas it requires energy, it gets this by the temperature of the LPG falling . It then gets heat from its surroundings to warm back up again so lagging has the wrong effect.

 

If you are going to be using heating a lot, then only answer is really to start using propane. You will need a different regulator with the correct fittings for a propane cylinder.

 

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Thanks a lot lads I'll deffo take your knowledge on board and change over to propane in the near future but I have definitely learned lots from this thread and will be back if propane doesn't solve the issue .thanking ur again and ur ever coming over to Ireland I'd love to hear from ye??
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If you use the link I provided in my posting of 17 January 2016 4:46 PM above and read through the trouble-shooting list on Page 10 of the document, you’ll see that the last entry in the “Gas operation” section refers to a Fault where the “Heating switches to Fault mode after an extended period of operation”.

 

When this problem occurs, one of the Causes is given as “Butane content in the gas cylinder too high” and the Rectification advice is “Use Propane (at temperatures below 10 degrees Centigrade in particular, butane is unsuitable for heating purposes)”.

 

Although it’s practicable to run a Trumatic-C heater (yours is a C-3402 model) on butane in warm weather, it’s asking for trouble to attempt this when the weather is cold. Water-heating may still work OK in wintry weather because the gas demand is lower than for air heating, but Truma’s general advice for operating any of their combination air/water heaters is always to use propane irrespective of the outside temperature.

 

Heating gas-cylinders, or the locker that houses the cylinders, has been discussed here a few times in the past. This is a 2005 example:

 

http://forums.outandaboutlive.co.uk/forums/Motorhomes/Motorhome-Matters/DIY-heated-gas-locker-/2803/

 

There’s a potential problem when motorcaravanners have user-refillable gas cylinders/tanks and visit (in winter) countries whose ‘autogas’ has a significant butane content. This is the case in France and gas-cylinder/tank heaters have been marketed there. The following link is to a “thermal slipper” that is connected to the leisure-vehicle’s blown-air heating system and is intended to warm the lower part of the gas-cylinder sufficiently to prevent cold-weather gas vaporisation problems.

 

http://www.narbonneaccessoires.fr/nos-accessoires/gaz/reservoir-gpl/chausson-thermique-333124-Borel.html

 

.............................................................................................................................

 

Calor gas-cylinders marketed in the Republic of Ireland are shown here

 

http://www.calorgas.ie/cylinders/

 

The on-bottle regulator used with butane cylinders is a ‘click-on’ type.

 

http://www.calorgas.ie/help/how-to-fit-a-butane-gas-r/index.xml

 

The appropriate on-bottle propane regulator depends on the cylinder. It seems that there are 3 possibilities

 

- an “F” Valve regulator with a female-threaded screw-on connector.

 

- a regulator with a male-threaded POL screw-in connector.

 

- a clip-on regulator for “Patio Gas” cylinders.

 

Calor’s Irish website carries Help and Advice sections relating to their gas cylinders and to safety/technical issues.

 

http://www.calorgas.ie/help/topic/cylinders/

 

http://www.calorgas.ie/help/topic/safety-technical/

 

 

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