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I have a problem with the heater blower fan on my 407... if the weather is cold and damp it refuses to blow. Warm the engine up for half an hour and it'll work fine.

I am currently thinking along the lines of a relay that is sticking, does anyone know where the blower fan relay is located on the 407 SW? or any other possible ideas on what could cause this?

Many thanks

A.
 

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How good is your battery/alternator and how quick does the car warm up, the blower will only operate when BSI sees rise in battery voltage (some where around 13V if i remember correctly) and a slight rise in coolant temps from engine running.
 

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my fan was intermittent.
i found that the white plug which is under the left footwells trim on the rite was melting from the connectors being too small.
i have a video on my youtube channel
youtube.com/ox141jf
 

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Ox141jf can u send me the link to your YouTube video about the melted plug for the fan? Can't see it on your feed and am having the same problem of intermittent blower failure. How did u fix it new plug just ?

Sent from my MotoE2(4G-LTE) using Tapatalk
 
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