heater fan problem

Technical questions and answers about the Mazda Bongo

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lorne444

heater fan problem

Post by lorne444 » Thu May 08, 2008 8:25 pm

I have a problem witth my heater fan. It doesn't work when switched on for the front but works correctly for the rear passenger seats at all speeds. Does this mean that there are 2 independent fans for the climate control? If so where are they? If not how does this behaviour arise? I suppose that there are fuse(s) for any fans and would like to check these. Where are they? There is apparently no fuse in the box in the driver's seatwell, only for aircon. Can anyone help? Thanks
francophile1947
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Re: heater fan problem

Post by francophile1947 » Thu May 08, 2008 8:33 pm

The heater fan fuses are in the fusebox under the bonnet - see fact sheet in member's area.
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Rhod
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Re: heater fan problem

Post by Rhod » Fri May 09, 2008 5:55 pm

Frnt heater fan motor failing due to water collecting in the housing and/or buring out the resistors is a common fault. Plenty of info if you do a search. Or in members factsheets.
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Doone
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Re: heater fan problem

Post by Doone » Fri May 09, 2008 10:06 pm

Does this mean that there are 2 independent fans for the climate control?
Yes there are.

As has been said, it's likely that the front fan has seized. Edit: They suffer with water ingress, which can cause the fan to eventually seize.

The new heater motors have a drain hole and modified pipe, so the water can escape.

There is a fact sheet in the members area and plenty of info on the forum. :)
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