HELP WITH TRUMA D6 HEATING

Mar 18, 2020
194
411
Funster No
69,473
MH
HYMER GRAND CANYON S
Exp
On and off for 20yrs
Only used our new van a few times and having problems with the truma diesel heating.
Possibly a error on my part but if the heating is left on overnight to maintain 20 degrees when we wake in the morning we have no heat.
If I reset to any temperature even 30 degrees the heater refuses to fire.
No fault codes appear on the display unit, i've tried to reset by turning off and on and changing off set but still no heat.
Any help appreciated.
 
Jan 24, 2012
1,115
718
Somerset
Funster No
19,577
MH
Hymer b694sl
Exp
Since 2012 + Caravanner for 20+ years
Do you hear any noises from heater, combustion fan, clicking fuel pump?
 
OP
Wondering star
Mar 18, 2020
194
411
Funster No
69,473
MH
HYMER GRAND CANYON S
Exp
On and off for 20yrs
No noise and no current drain on the battery monitor.

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Jan 24, 2012
1,115
718
Somerset
Funster No
19,577
MH
Hymer b694sl
Exp
Since 2012 + Caravanner for 20+ years
If you google truma d6 wiring, you get an australian site where you can download a manual if you havent got one.
It shows removing a cover to check 2 fuses. Might be a place to start, and if you have a meter check supply voltage is ok at the fuses, assume you will be able to see supply cable once cover is open.
Sorry but I have no more to offer.
 
OP
Wondering star
Mar 18, 2020
194
411
Funster No
69,473
MH
HYMER GRAND CANYON S
Exp
On and off for 20yrs
Thanks, appreciate it, last time by the evening it worked as normal. Hopefully it will be the same tonight.
May be a faulty temperature sensor?
 
Oct 10, 2018
270
159
Bracklesham Bay, West Sussex
Funster No
56,646
MH
PVC
Exp
Since 2005
There should also be a fuse in the PSU for the heater, this could be worth checking as well, there may also be a reset button on the heater.
Just seen your reply, so not fuse, but it could be worth checking for a reset button in case it needs a push

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