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Dan
Dan, Technician
Category: UK Car
Satisfied Customers: 23740
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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Issue with not power going to xc90 heater blower

Customer Question

issue with not power going to xc90 heater blower
Submitted: 1 year ago.
Category: UK Car
Customer: replied 1 year ago.
I replaced the fan and resistor on the vovlo xc90 but when i installed it and tested it the fan was touching something and the power just cut out.I found that the 30amp climate control fan fuse had blow and i replaced it but still not power coming through.I cant hear any relays or switches coming on like i did before.I must be missing something
Expert:  Dan replied 1 year ago.

Hello, my name is***** battery, touch cables together for 10 seconds with battery disconnected to reset system, then let me know if that helps. If system detected a problem it will disable blower motor. If that doesn't help you probably have another blown fuse. Let me know how it goes or if you have more questions, thanks.

Customer: replied 1 year ago.
Which cables am I touching together?
Customer: replied 1 year ago.
This did not work!
Expert:  Dan replied 1 year ago.

At the blower motor, check for power at all times on the Red wire. If no power, fuse is blown. Let me know, thanks.

Customer: replied 1 year ago.
I have replaced the fuse still no power
Customer: replied 1 year ago.
The fuse was blown
Expert:  Dan replied 1 year ago.

So it still doesn't work? Is there power at red wire now? Thanks.

Customer: replied 1 year ago.
No
Expert:  Dan replied 1 year ago.

You still do not have power at red wire?

Customer: replied 1 year ago.
nope
Expert:  Dan replied 1 year ago.

I'm having issues pulling up wire diagram in database so I'll open question back up to see if someone else can help.