blower motor current draw -

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post #1 of 4 Old 08-21-2007, 09:49 PM Thread Starter
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blower motor current draw

does anyone know how to test if the blower motor for the vents is drawing too much power....... basically how do i test its current draw and what should the spec be?

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post #2 of 4 Old 08-21-2007, 09:55 PM
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voltmeter .....

96 ZJ Longarm
Previous rigs : 96xj , 92 xj , 00 tj , 90 xj , 93 Longarm XJ
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post #3 of 4 Old 08-25-2007, 08:35 AM Thread Starter
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yea i know a voltmeter.......actually i just want to know the procedure (like speed switch on low or high or what) and what the spec should be
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post #4 of 4 Old 08-25-2007, 09:33 AM
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If you have an amp clamp, you can just clamp it around the blower power wire for a measurement. Using a multimeter to measure current requires that you break the circuit and put the meter in series with the blower motor.

I don't know what the amperage should be. It is fed from a 40A fuse through the blower motor relay, but it won't be anywhere near 40A. I'd guess between 15 and 20 amps.
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