Truma 4E

Discussion in 'Heating and Air-Conditioning' started by jezport, Oct 13, 2016.

  1. jezport

    jezport Funster

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    Ive has an issue where the truma blown air heating cuts out giving a flash code that translates to either the fan , temperature sensor or the PCB being faulty and causing the heater to shut down due to over heating. The van is brand new and its one this only happens when the heating is running full whack on blown air.

    If the blown air tubes are restricted it can cause this type of fault, but they are all clear.

    Ive had a truma trained technician take a quick look and he told me he had never seen insulation fitted to the hot air pipes where they leave the boiler and suggested that its possible that too much heat is being kept inside the boiler due to this insulation. The boiler is fitted under the half dinette seat so doesn't have a massive area to dissipate heat.

    Ive removed the insulation from the tubes for the area inside the seat and have tested the boiler around 4 times today and the fault hasn't shown. I'm going to run it again tomorrow to be sure that its definitely cured.

    Does anyone else here have a truma 4E Boiler, and are your blown air pipes insulated where they leave the truma?
     
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  2. peterc10

    peterc10 Funster

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    If this is a brand new van shouldn't the dealer be sorting it out for you?
     
  3. jezport

    jezport Funster

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    5 hour drive away and they will fit one part and send me home to see how it goes.
    Truma has technicians in my area so rater than waste 3 return trips using £200 of diesel im getting it sorted locally.
     
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  4. ericroy

    ericroy Funster

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    No insulation on my blown air pipes from my Truma 4e and neither have I seen any on other installations!
     
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  5. Zigisla

    Zigisla Funster

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    My 6E is in a tiny cupboard under the wardrobe and does not have any insulation around the outlet pipes.
     
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  6. sdc77

    sdc77 Funster

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    Not sure if you're aware that Truma are at Burton on Trent and you can call them for advice and/or book the van in and they'll fix it while u wait.
    01283586020
     
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  7. jezport

    jezport Funster

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    Im going to phone truma technical up tomorrow and ask them if the insulation should be used on the pipes close to the boiler.
     
  8. jezport

    jezport Funster

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    does the cupboard have air vents / grilles to let fresh air in?
     
  9. Zigisla

    Zigisla Funster

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    IMG_0174.JPG
    No. it is just the bottom of the wardrobe. Cannot see very well, but it is jammed in there and there is just enough room for a bottle of red wine between the boiler and door(y)(y)
     
  10. Zigisla

    Zigisla Funster

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    I am over in the MH tomorrow if you anymore info or better pics
     
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  11. Margaritaman

    Margaritaman Funster

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    Older model 6E (grey casing not newer model with black casing).

    No insulation on my ducting
     
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  12. jezport

    jezport Funster

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    I ran the boiler on no5 this morning from cold and it ran perfectly. So it seems that the insulation near the boiler was causing it to go to fault and shut down.
     
  13. jezport

    jezport Funster

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    I still have an intermittent fault on my Truma, I have it booked in at Truma tomorrow so will report back. Apparently the latest boilers have a memory of exactly what the unit was doing when a fault occurred and they have a diagnostic computer they can plug in.
     
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  14. jezport

    jezport Funster

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    Arrived at Truma at 8.00am
    Technician looked at boiler.
    I was worried that the fault wouldn't show. But luckily it did, within 5 minutes.

    They've sent me to their canteen while they look at it
     
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  15. Minxy Girl

    Minxy Girl Funster Life Member

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    ... the suspense is killing me ...... o_O
     
  16. sewinlynne2

    sewinlynne2 Funster

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    Could it possibly be a 'bodge' by either the factory or(more likely) the dealer? I would carefully check around the whole area where the 'insulation' had been put to see if there is any leakage of air from anywhere.
     
  17. Allanm

    Allanm Funster

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    Hope they are paying for breakfast.
     
  18. Minxy Girl

    Minxy Girl Funster Life Member

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    My thoughts are that the insulation should have been removed when it was fitted ... but without seeing a photo I can't say for certain.
     
  19. jezport

    jezport Funster

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    No its only on the warm air ducts.
     
  20. Vanman

    Vanman Funster

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    I think it's ... sausage eggs and beans! Maybe with toast ...
     
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