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Motor only runs on low speed, even if voltage is applied to the high speed terminal. I diconnected all wires from motro terminal block. I measured resistance between high and low speed terminals. No resistance, just pre continuity.

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The resistance would be low, or almost zero even if it were working right. Check wiring very closely at the terminal block inside the motor for anything touching. The only other explanation is that the high and low wires have shorted inside at the windings and only the low is making a circuit. It is possible to tap the 'end bell' off the motor and possibly find the shorted wire. Be sure to scribe the end bell and the case with a mark so you get the two lined back up going back together.
I really think it might be fight at the terminal block, look very close for the two wires making contact there.

Posted on Sep 25, 2009

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Replacing a heaters blower motor


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The indoor blower motor is powered by 115 volts or 230 volts, either way it wires the same.
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Line 1 and Line 2 or L1 and L2 to make it easy.
Common always gets a leg all to itself, you cannot run both legs of power to the speeds as the speeds are on the Run winding, that is a direct short, and you cant run a leg to Start or it will turn backwards! This is how we unlock compressor's that get stuck!
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Fuse number for winderwiper


Hi Maddie, I'm glad to help! Below, I have posted a diagnostic procedure to see why the wipers are not working on your Dakota. Hope this helps and have an awesome day Maddie!



DIAGNOSIS
WIPER MOTOR

The following are wiper motor system problems,
tests to be performed to locate the faulty part, and
the proper action to be taken. If the malfunction involves
only the delay mode, switch, or wiring, see the
diagnosis for Intermittent Wipe Module and Wiper/
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CONDITION
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switch position.
PROCEDURE

(1) Check fuse 10 in the fuseblock module. If OK,
go to step 3. If not OK, replace fuse and go to next
step.
(2) Check motor operation in all wiper/washer
switch positions. If not OK and fuse blows, go to step
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(3) Place wiper/washer switch in LOW position and
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(4) Connect a voltmeter between motor terminal L
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Remove wiper arms and blades. Connect an ammeter
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CONDITION
Motor will run at high speed, but not at low
speed.
Fig. 1 Voltmeter Between Terminal L and Ground

Motor will run at low speed, but not at high speed.
Fig. 2 Ammeter Between Terminal L and Battery
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1 Answer

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1 Answer

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