hi mate, i have a vauxhall movano 2022 same as ducato, relay boxer etc. The blower has stopped working at all, not even flat out. did you have same symptoms? did you mange to fix it? thanksHave a look on Youtube using Fiat Ducato and Peugeot Boxer as well as the Relay.
Easiest to check is the fan itself under passenger glove box. One 5.5mm hex bolt and twist the fan housing. Take a couple of photos first. On our Ducato I had to remove the passenger footplate, to give enough room for the fan to drop down.
Remove plug and test if fan runs under direct power.
Next simplest to check is the heater blower motor resistor. Again search YouTube. It is next to the fan motor with again, one 5.5mm hex bolt and the resistor slides sideways out of the housing. There is a video showing how to test it using a multimeter but a new one is a tenner off Ebay. I understand that the resistor creates the required power for the three slower speeds but the high speed 4 is direct wired to the fan motor. So a pointer to look for is that if the fan is working on speed 4 but not on the other three, 1, 2 & 3 then the resistor is probably duff.
The speed selector switch requires more access work, but again there are a couple of videos showing how. I am waiting for delivery of a new switch but I understand with a bit of dexterity, it can be done from behind without removing the full control module.
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The unit marked with the red arrow is the switch. The red shaft that can be seen within the switch is turned by the dial at the front to control speeds 1,2,3 &4 on the fan.
I understand that if you remove the 2 Philip's screws and ease the switch of the two white locating lugs above the screws, the whole switch will slide out. Remember to set both new and old switches to the same setting so that the flat on the red shaft will go back in.
When the one I have ordered...
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arrives, I intend to put the power plug into the new switch before removing the old switch to see if the new switch powers the fan before fitting it.
You can buy Chinese copies of the switch for about a tenner but the dearer one is OEM.
Yes. Once the new switch arrived, it was a bit of a fiddly job but doable.did you mange to fix it? thanks