Truma fault code

Discussion in 'Motorhome Chat' started by Howard H, Feb 27, 2016.

  1. Howard H

    Howard H Funster Life Member

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    Hi every one wonder if any one can give me some advice we are away for the weekend and could not get the heating to fire up at all but after half an hour it has but with fault code w18h ,I am all right to carry on using it and what does it mean . The heating system is a truma 6 .thanks
     
  2. Bluemooner

    Bluemooner Funster Life Member

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  3. maz

    maz Funster

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    I have an earlier version of the Truma Combi than yours (our fault codes are transmitted as a 'morse code' series of flashes) but a quick look online shows:

    W = Warning
    H = Furnace (presumably meaning boiler)
    The number in the middle is the 'error code' and 18 refers to either:

    a) Warm air outlet blocked - check the individual outlet openings.
    b) Circulated air intake blocked - remove blockage from circulated air intake.

    HTH
    :)
     
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  4. Howard H

    Howard H Funster Life Member

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    Thanks Bluemooner and Maz ,very helpfull I have had to retire to the pub purely to keep warm you understand but will check that out when I get back thanks again .(y)
     
  5. pops

    pops Funster

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    warm air outlets blocked. Check all warm outlets are open and check circulated air intake for blockage.
     
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  6. Steve N Tracy

    Steve N Tracy Funster

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    I had the same warning on my Truma Combi 6 last trip out, the wife had put something in front of the air intake vents for the combi boiler which in our van are under in a space between two seats she thought it would be a good storage area for some boxes,removed the boxes turned the power on and off to reset the control and problem solved.
     
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  7. Reallyretired

    Reallyretired Funster

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    In my previous MH there was one outlet which. could not be closed. It was in the shower. I was surprised to find all the outlets on my present rapido can be closed, which seems dangerous so I have wedged one permanently open.
     
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