Webasto heater (1 Viewer)

[jordano]

does anyone have the Webasto air top 3500 heater fitted the switch is turning on and lighting up green but it flashes no fault codes showing on the programmer but it is red lighting and I’m sure it was green last time I tried to get it work it seemed to fire up and started to blow but only cold air is there anything I can check?

 

[PhilandMena]

Yes! Try reading the manual that came with the heater, it's full of informative stuff !

 

[jordano]

Have tried going through the manual but being of later years I am probably not as clever as you!!

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[DBK]

We have the dual top and twice it has thrown a fit which I cured by removing the three fuses then replacing them after a minute or so.
However, a red light suggests a fault but worth re-booting it to see if it clears.

 

[jordano]

That’s another problem DBK I can’t find where the fuse are

 

[PhilandMena]

Have tried going through the manual but being of later years I am probably not as clever as you!!

I wouldn't bet on that ! Not only am i a free loading tosser, it's common knowledge I'm as thick as pig shit too.

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[PhilandMena]

That’s another problem DBK I can’t find where the fuse are

Mine are next to the leisure battery.

 

[DBK]

That’s another problem DBK I can’t find where the fuse are

If you haven't got a wiring diagram for the MH then it will be largely guesswork finding them I fear. Our has one 10A and two 15A fuses (from memory ) but it is a different model so yours could well be different.
It may be safer to get someone to look at it. Webasto are widely used in boats so you don't have to find a MH related company.

 

[andy63]

It may be possible to locate the heater and see where the wires enter the van through the flooor... could give a indicator to fuse location..
Its worth checking that you havent placed something over the air inlet grill...again usually located inside the van...
Andy

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[jordano]

Thanks for that will have look tomorrow if this rain has stopped!

 

[andy63]

Another common problem is when trying to start they pull the battery voltage down if your batteries are down on capaciy...
You need to check the voltage while the heater is trying to fire up..
Andy..