Technical Intermittent Oil Vapour Heater error

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Technical Intermittent Oil Vapour Heater error

MoHo Aidan

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Joined
Apr 2, 2024
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Location
Cambridgeshire
Hi All
Just joined after buying our second motorhome last week.
This is based on a 2017 130 BHP Ducato.
I have an issue causing the Engine Management light to come on, symptoms below:

Error code P158115 Oil Vapour Heater/Blow-by Heater
All fuses are good.
When code is erased, all may run fine for a while eg recently went 80 miles without recurrence. Other times 20 miles or even immediate recurrence when restarted.
Given it is intermittent, I’m thinking not likely to be a fault with the heater itself? Perhaps a dodgy connector somewhere?

I haven’t seen any reports of this fault on other posts.

Has anyone had similar problems or have suggestions on what steps to take?

Many thanks.
 
Last edited:
Hi All
Just joined after buying our second motorhome last week.
This is based on a 2017 130 BHP Ducato.
I have an issue causing the Engine Management light to come on, symptoms below:

Error code P158115 Oil Vapour Heater/Blow-by Heater
All fuses are good.
When code is erased, all may run fine for a while eg recently went 80 miles without recurrence. Other times 20 miles or even immediate recurrence when restarted.
Given it is intermittent, I’m thinking not likely to be a fault with the heater itself? Perhaps a dodgy connector somewhere?

I haven’t seen any reports of this fault on other posts.

Has anyone had similar problems or have suggestions on what steps to take?

Many thanks.
The heater is known to fail. I have only recently responded on another forum, to a report of a failed heater, and a supplier saying that spares were no longer available. In UK other than in extreme winter conditions, you can run without the heater, but the warning light would be a problem with the MOT.
 
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