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Fanmaster Heater Tripping Out


balivernes
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Can anyone throw any light on why my Fanmaster heater trips out frequently and unpredictably? It's easy to re-set, but involves moving clothing etc. from the wardrobe so as to access the 'black hole'. Also, one can't depend on it continuing to function while away from the van during cold weather.

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Thanks, I'll try that. Did you have to dismantle the unit to get at the fan?

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Did you have to dismantle the unit to get at the fan?

If yours is the 3004 model then yes - the fan needs removing from the rear of the fire. Take off the hot air hoses then loosen three screws holding the fan. There's no need to take them out completely because if you turn the fan a bit the screws will clear the slots. Having done that the fan comes away from the fire. You'll probably need a pointed scraper to dislodge the fluff, followed by a vacuum hose. This was mine after 10 years use.

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Yep that's about right, one quick point, you don't need to take the screws out, just slacken them off and then twist the fan unit to release. Watch the cables, 12 v supply (note the polarity) and the cable to the fan speed control. 5 minute job to remove, an old toothbrush and vacuum cleaner to clean the fan.

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You say Fanmaster so different to the Truma-vent fan shown.

 

You will then need to remove the fanmaster which uses the same three screw fixing but screws need to be totally removed together with 12v and 240v connections and duct pipes

After that, there is a large alloy cover plate to remove from the fanmaster which is either 6 screws, or 6 rivet like fixings, these though also screw out which needs a good quality 2mm Allen key, replace plate using No6 x 10mm self tappers.

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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Once again, thanks everyone.

I don't know if its a 3004 model,but I don't think so, because it doesn't seem to tally with the advice I'm getting. Neither the owner's manual or the installation manual indicate the model, and the information on the body of the fan relates only to specifications.

I tried to dismantle it but nearly went into spasm trying to do it with a mirror, working in the 'black hole' trying to get screws out of the back of it. Eventually I took the cover off the gas heater to discover that the fan blades are quite visible through the heater, and can be reached and cleaned with a wooden barbecue skewer followed by a vacuum cleaner, one or two blades at a time.

Edited by balivernes
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Mine went in the dishwasher :ph34r:

hawkaye :beardy:

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Crickey, you have a dishwasher in you caravan?

 

No, the fan was dismantled and I took the impeller indoors - to the dishwasher.

hawkaye :beardy:

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Funnily enough I never thought about the dishwasher, however washing machine!

 

No not exactly but a hot soak in Daz for 10 minutes brings fans up like new! :)

 

As for the OP, I perhaps did not explain it clearly enough, there no where for loose fluff to go except on top of the elements directly behind the over-temp switch. The elements are then probably already clogged with previous build up so that's why I said it MUST come out for cleaning!

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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