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Old 07-14-2016, 08:32 AM   #1
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Brand: Thor Motor Coach
State: Georgia
Posts: 4
THOR #724
Wiper module replacement

I need to replace the wiper control module in my Workhorse W20D chassis. know it is on top of the steering column support and I was wondering if anyone has any suggestion as to how best to reach it and replace it in my Serrano 31X.

thanks
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Old 12-25-2016, 03:59 PM   #2
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Brand: Thor Motor Coach
State: California
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THOR #6150
These ggonout over and over. Mine has 21 k miles and it went out on a recent trip to the Grand Canyon. The next replacement will be my 4th! Any ideas how to get it to quit failing?
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Old 12-26-2016, 09:17 AM   #3
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Brand: Thor Motor Coach
State: Georgia
Posts: 4
THOR #724
The problem according to the module manufacturer is that the wiper motor can draw up to 90 amps. This will most likely happen on a dry windshield. They recommend to Thor a long time ago to install 3 relays between the module and the motor. If you do that it should solve the problem once and for all.
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Old 12-26-2016, 10:54 AM   #4
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THOR #6150
Super helpful! This would be our fourth one, so this could make a big difference.
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