HEATER FAN

2004 Chevrolet Avalanche

Tiny

Cathy Smythe

January, 2, 2011 AT 8:59 PM

Heater fan running after engine turned off and runs down battery. What causing fan to stay on?

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4 Answers

Tiny

JDL

January, 2, 2011 AT 9:17 PM

Where applicable, change the blower relay/resistor assembly for manual hvac system.

Tiny

Wrenchtech

January, 2, 2011 AT 9:19 PM

I assume you have Automatic Temp Control system. The problem is likely a bad Blower Speed Control Module. If it's not ATC, then the resister that takes it's place is bad.

Tiny

Cathy Smythe

January, 2, 2011 AT 9:26 PM

Thank you for your assistance. Cathy

Tiny

Wrenchtech

March, 11, 2011 AT 4:32 PM

Closing out question

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