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Old 06-09-2018, 05:49 PM   #1
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Winnebago Owners Club
Join Date: Mar 2017
Location: Mico TX
Posts: 260
Parallax 6345 power converter

We have had our 2002 Keystone Cougar 5ver (27 ft) for about a year. No issues with the Parallax 6345 power converter till the last time out. It is the original and is 16 years old.

Camping this last weekend, temps were in the triple digits for the four days at the RV park. We have a 30A shore power service and the power converter is 45A.

During the hottest times of the day, the main and A/C fuses tripped often. No bueno. Feeling these breakers, they were HOT. I did some research and found some guy camping in Arizona under similar temps had the same problem and when he directed a small fan at the open power converter in his trailer, the circuit breaker popping issue stopped. I directed a small fan at our power converter and the breaker issue also stopped.

I suspect either the fan is dead OR there is a 140 degree thermostat that kicks the fan on may have died. In any case, when I get the time, I will check the fan and probably replace the thermostat; might even put a small 110V muffin fan in to supplement cooling. The Parallax company seems to have morphed into Magnetek but they are selling the same units (6300 series) under both names.

If yours breakers pop under higher temps, this note may be of some use.
wiredgeorge Mico TX
2006 F-350 Crewcab 4wd LWB 6.0L
2002 Keystone Cougar 278EFS
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Old 06-09-2018, 06:24 PM   #2
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Join Date: Jul 2014
Posts: 28,606
I would disable it and install a Power Max 55 amp, stand-alone converter. Moves the heat away from the breaker panel.

That's what I did.
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Old 09-21-2021, 05:17 PM   #3
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Join Date: Sep 2021
Posts: 19
Me too!

How did you connect the Power Max 55 into this panel? My issue is the charger output connection. When you say you removed the Magnetek I'm guessing that includes the whole lower element yes?
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Old 09-21-2021, 06:06 PM   #4
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Join Date: Jan 2020
Posts: 640
I updated the convertor on my last RV, replacing the Parallax unit with a Progressive Dynamics. The linoleum flooring under the original Parallax was burnt from the heat from the unit. Have seen many pics of the same situation as mine.
2001 Winnebago Brave SE29 Workhorse P32 7.4L (previous)
2007 Fleetwood Bounder 33R, F53 chassis, V10 (current)
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converter, power

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