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09-27-2020, 08:24 AM
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#1
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Seasoned Camper
Join Date: Aug 2017
Location: Dayton
Posts: 66
M.O.C. #20338
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No 120volt
We keep our 2020 3931FB plugged (50 amp)in while not using at home. I just realized yesterday that I have no 120 volt in the coach. We had a power flicker numerous times recently and it did go out for several hours. Power came back on and I have not checked the coach for 3 or 4 days since then. I assume the power issue has caused something to happen to power in our coach. I have a Watchdog surge protector that is working properly. It has the correct power coming through it. Also our 3931FB is a Legacy that has a built in surge protector. Wonder if that is my problem? I have checked the GCFI in the half bath and it doesn't seem to be tripped.
Any ideas as to what to try?
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09-27-2020, 08:43 AM
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#2
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,363
M.O.C. #6433
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If you are ok with checking live 120 vac with a voltmeter, I would open the power distribution center and see if you have power at the main circuit breaker and all the sub breakers. Then you will know which way to check further.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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09-27-2020, 08:50 AM
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#3
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Seasoned Camper
Join Date: Aug 2017
Location: Dayton
Posts: 66
M.O.C. #20338
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Good idea. I have been thinking about that. I will check later today and report back what I find.
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09-27-2020, 10:27 AM
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#4
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Seasoned Camper
Join Date: Aug 2017
Location: Dayton
Posts: 66
M.O.C. #20338
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Well I do not have power to trailer breaker box. Voltage coming from source is fine. Looking for Surge Guard built in unit.
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09-27-2020, 10:37 AM
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#5
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,727
M.O.C. #7992
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Before digging into the trailer I'd check it at the trailer end of your 50 amp cord. Do the simple things first.
__________________
2006 3000RK
2009 Ram 2500
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09-27-2020, 11:47 AM
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#6
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Seasoned Camper
Join Date: Aug 2017
Location: Dayton
Posts: 66
M.O.C. #20338
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Well, I found the problem, what I figured all a long. Its the built in surge protector. It does not want to reset itself after the power comes on. I can manually reset it though and everything works fine. The indicator lights do not indicate an issue though. Its a PD52DCS.
The The trailer is 1 year old. i will call my dealer tomorrow and see how he wants to handle this.
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09-27-2020, 12:51 PM
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#7
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Montana Master
Join Date: Jun 2014
Location: Vancouver Island
Posts: 894
M.O.C. #14417
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You have an automatic transfer switch that has some surge protection. It is probably the automatic transfer switch that is giving you the problem. It is unusual for that to happen however.
__________________
Lenny and Ros
2012 Montana 3400RL,680 Watts Solar,4xT-105 Trojans,GP-ISW2000-12 Inverter,Trimetric 2020, EMSHW50C
2009 Chevy Silverado 3500 LTZ Duramax 4x4 CC Dually, Banks Speed Brake
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09-27-2020, 01:50 PM
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#8
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,695
M.O.C. #4831
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That PD52DCS is an automatic transfer switch for generator prepped rigs. They have had lots of problems with them not resetting after a power interruption. They should be replaced under warranty. You can manually reset it until replaced.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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09-27-2020, 08:03 PM
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#9
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Seasoned Camper
Join Date: Aug 2017
Location: Dayton
Posts: 66
M.O.C. #20338
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I have manually reset it today and all is well. I will reach out to the manufacturer tomorrow. May just replace with a junction box as I will never install a generator in the unit.
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09-28-2020, 07:23 PM
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#10
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Seasoned Camper
Join Date: Apr 2019
Location: Renton
Posts: 71
M.O.C. #23813
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Just call them with the serial number that is on the transfer switch box, and your purchase date. It has a 2 year parts warrantee. I have one coming by fedex tomorrow. I do not think the labor to replace it is covered. I am changing it myself.
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09-28-2020, 08:07 PM
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#11
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Seasoned Camper
Join Date: Aug 2017
Location: Dayton
Posts: 66
M.O.C. #20338
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Thats exactly what i did today. I called and they are sending a replacement. I will change myself. Thinking about eliminating the transfer switch and installing a junction box instead.
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09-28-2020, 08:25 PM
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#12
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,695
M.O.C. #4831
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The ATS will come in handy if you decide to add a front shore power cable.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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09-29-2020, 08:58 AM
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#13
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Montana Master
Join Date: Jun 2014
Location: Vancouver Island
Posts: 894
M.O.C. #14417
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It would come in handy also if you add a solar system.
__________________
Lenny and Ros
2012 Montana 3400RL,680 Watts Solar,4xT-105 Trojans,GP-ISW2000-12 Inverter,Trimetric 2020, EMSHW50C
2009 Chevy Silverado 3500 LTZ Duramax 4x4 CC Dually, Banks Speed Brake
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09-29-2020, 09:12 AM
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#14
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Seasoned Camper
Join Date: Aug 2017
Location: Dayton
Posts: 66
M.O.C. #20338
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Thanks for all of the help and comments. I will change the switch when the replacement gets here. I will update you all after the change out.
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09-29-2020, 08:53 PM
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#15
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New Member
Join Date: Jul 2019
Location: Weaverville
Posts: 8
M.O.C. #24525
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I had one replaced under warranty at 6mths. Replacement malfunctioned at7mths. So l replaced with different manufacture. Have read PD52DCS. Have had lots of issues.
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10-09-2020, 09:12 PM
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#16
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Established Member
Join Date: May 2020
Location: Halifax
Posts: 45
M.O.C. #26352
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Having the same issue... Just curious on how you manually reset??
Tks
__________________
2020 3855BR Legacy w/ Full Body Paint
2019 Ram 3500 Limited Mega Cab DRW
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10-10-2020, 01:42 PM
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#17
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Seasoned Camper
Join Date: Aug 2017
Location: Dayton
Posts: 66
M.O.C. #20338
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I changed my unit out with the replacement. All good now. The only way to get my old one to work was to manually push the contact in. Once I did that the contact would stay in place until I turned my power off. Need to be very careful when doing this as the incoming wire is hot. It takes power for the contact to stay in place.
The transfer switch is box is not very easy to get to. Mine was located behind the On Command box in the storage compartment. You will have to remove that wall panel to get to it.
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10-10-2020, 01:44 PM
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#18
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Seasoned Camper
Join Date: Aug 2017
Location: Dayton
Posts: 66
M.O.C. #20338
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In Command
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