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Heater fan won't work in 2000 Chevrolet Blazer. Dont know which fuse is for the heater.

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My 2008 chevy blazer makes a humming noise when i turn it on and its cold outside and i left the heater on the night before

Posted on Mar 30, 2011

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GM has a fuse panel on the left side under the dash. The fuses are labled HTR/AC. There is also a set of overload relays under the hood on the driver's side. They are also labled. The owner's manual has a diagram showing both the location and type of fuse to use. Cleaning the sockets with electrical cleaner when you replace the fuses helps them to make better contact.

Posted on Mar 13, 2011

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1 Answer

Heater blower no working


Have you checked the fuses. Check with test light power to the wiring socket at the heater fan with it switched on. If no power it can be the switch or the resistor or the relay. If there is power there the heater fan motor may need replacing. You need to check the earth wires. Make sure they are clean and tight

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does it have a weird smell or has any smoke come out of the vents? the heater core might have went out. they cost about $60. it would cost around $900 i'd say to have it fixed by a mechanic but if you do it yourself it would be cheaper. they are a pain though. takes about 4 hours if you know how to do it.

Jan 05, 2011 | 2000 Chevrolet Blazer

1 Answer

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Hello. this is normallyt caused by a restricted heater core. under the hood on the passenger side of engine you will see two heater hoses going to the firewall. feel these hoses, they should both be hot to the touch. if one is cold and the other is hot, the heater core is plugged up. sometimes you can back flush the heater core and get the heat to work again.

Dec 07, 2010 | 2000 Chevrolet Blazer

1 Answer

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Jan 23, 2009 | 2000 Chevrolet Blazer

1 Answer

2000 chevy blazer my heater isnt working


Check temperature sensor,replace thermostat,And if you turn on the fan you should hear it and feel air from the vents,if the fan motor is working.If it's not working,check the fuse for the fan.
Please rate this solution.

Jan 15, 2009 | 2000 Chevrolet Blazer

1 Answer

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