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72 blower fan not working

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Old Mar 21, 2013 | 02:49 PM
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Default 72 blower fan not working
On our 1972 roadster, we had the heater fan blowing well after fixing some ends on the relay. But now the fan will not run at all. The relay still clicks when going to high speed, but nothing works. Any ideas? Thanks
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Old Mar 21, 2013 | 03:16 PM
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check with a voltmeter if you have power at the blower when it is set for high speed. The slower speeds run through a resistor which can burn out.
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Old Mar 21, 2013 | 04:17 PM
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From: Austin Tx
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Also, if you were over around the fan, it's pretty easy to knock the ground wire off.
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Old Mar 21, 2013 | 04:35 PM
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The fan is now working with variable speeds, but it is not working at full power on any of the speeds. Any ideas?
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Old Mar 21, 2013 | 06:45 PM
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Originally Posted by ngl
The fan is now working with variable speeds, but it is not working at full power on any of the speeds. Any ideas?
The high speed is feed by a big orange wire which runs over to the horn relay.
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Old Mar 22, 2013 | 08:37 AM
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Originally Posted by C6DuffMan
The high speed is feed by a big orange wire which runs over to the horn relay.
The orange wire has an inline fuse holder. fuse may have blown, 30a iirc.
Carter
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