Heater not working

Heater not working

Postby buick68 [OP] » January 5th 2011, 2:48am

Hello, 1995 RWD Astro Van Conversion my heater is on the blink, works when it wants to work! I have to put the heater on low for 5 to 10 mins before it comes on, Then i can move it up one every 5 mins or so till i have heat on high speed :confused: Need help a/s/a/p thanks!!!!!!!!!!
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buick68
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Re: Heater not working

Postby chevymaher » January 5th 2011, 3:02am

Is blower motor working and you not getting heat or is it the blower motor not coming on.Need more info
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Re: Heater not working

Postby Phantom » January 5th 2011, 3:05am

Take a voltage meter and go to the blower resistor connector plug and test the voltage on each of the pins to see if you are getting voltage at each pin as soon as you turn the switch to each position , that should tell you if you are getting voltage to each speed level to the motor instantly or if you have to wait for it , it should be instantly ; If it is then maybe your resistor or motor is going bad . as the blower ages it starts to draw an increase in current till it goes out , , it also could be bad ground connections delaying the current flow , clean all ground connections in the circuit.
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Re: Heater not working

Postby buick68 [OP] » January 5th 2011, 3:30am

chevymaher wrote:Is blower motor working and you not getting heat or is it the blower motor not coming on.Need more info

Blower not comeing on as soon as i turn heat on, have to turn on low then wait 5 or so mins then turn up to high speed for blower motor to blow heat
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Fueling (1/2 tank)
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Re: Heater not working

Postby chevymaher » January 5th 2011, 3:41am

Phantom the man on electrical stuff.Check grounds like he said.The resistor probably the culprit. here a picture of where it at.Under hood on left you will see it
resistor.jpg
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Re: Heater not working

Postby buick68 [OP] » January 5th 2011, 3:44am

chevymaher wrote:Phantom the man on electrical stuff.Check grounds like he said.The resistor probably the culprit. here a picture of where it at.Under hood on left you will see it
resistor.jpg

:ty: that pic is a vry big help!
Original Poster [OP]
buick68
Fueling (1/2 tank)
Fueling (1/2 tank)
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Re: Heater not working

Postby chevymaher » January 5th 2011, 3:55am

I more old school common kind of guy.I assume if you asking you were like I was when I was young wow my first time.You welcome
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