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Topic: Truma fanmaster s3002 blowing the trip.

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rabbin8

24/9/2018 at 10:21pm
Location: Powys Wales
Outfit: Abbey 2 berth. Astra sports tourer .

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My Truma fanmaster blows the trip when on 1k/2k. No heat comes out of the vents beforehand, but the case at the rear is getting very warm. Any ideas?

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Rob

Pickled Onion

24/9/2018 at 10:56pm
Location: Near Alton Towers
Outfit: Bailey+Burgundy+S7+H

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is the 12 volt blower fan working? Perhaps the heater is working but getting too hot locally as there is no air flow to move the heat out of the back of the fire.

Dave.

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Never argue with an idiot, they will drag you down to their level and beat you on experience.
Mark Twain.

rabbin8

24/9/2018 at 10:59pm
Location: Powys Wales
Outfit: Abbey 2 berth. Astra sports tourer .

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Yes the fan is working fine. All three vents are open and cold air is coming out.

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Rob

Pickled Onion

25/9/2018 at 6:58pm
Location: Near Alton Towers
Outfit: Bailey+Burgundy+S7+H

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That sounds like a strange fault Rob, even if only the 500W section was working you would feel some heat coming out with the fan turned low.

The baffling part is that something is getting very hot, my guess is the crimp connectors to, and/or the overtemp cut-outs, they have a habit of arcing and burning out over time, maybe shorting to earth now hence the tripping. Unfortunately it sounds like a bit of a strip down and maybe professional intervension.

Dave.

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Never argue with an idiot, they will drag you down to their level and beat you on experience.
Mark Twain.

rabbin8

25/9/2018 at 7:06pm
Location: Powys Wales
Outfit: Abbey 2 berth. Astra sports tourer .

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Cheers for that Dave. I'll get someone to have a look at it when we get home.

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Rob

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