Heater switch won't contril temp

Tiny
ANONYMOUS
  • 1987 CHEVROLET VAN
  • 119,000 MILES

Heater switch won't contril temp. So it stays on low. Check blower fan don't know if resistor or relay or switch. How do you tell if heayer switch is bad. I don't have money to replace parts or take to garage. Please help!

Saturday, February 16th, 2013 AT 11:26 AM

1 Reply

Tiny
HMAC300
  • EXPERT
  • 45,746 POSTS

Go to resistor it may be by blower and turn to different settings using a stest light probe each wire to seeif power if there is then the resistor mayb e bad as well as blower relay. Relay usually controls high speed

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Saturday, February 16th, 2013 AT 4:50 PM

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