transfer switch issues

[paulw]

Hello all,
We took the 3121rl out for our first trip this year last weekend.
We were all good until the A/C power dropped offline. Took a bit of hunting till I found the transfer relay contactor popped. I reset it and we were all good for the rest of the weekend.
When I got home I noticed it was popped again. I hooked up 110v at home and
it reset again but now it's buzzing. If i pull the power it unlatches and I have to reset it again. Should it unlatch and relatch with the power? it does it with the batteries on or off.
It is an intelli-power PD52DCSD
I have heard the reliability of these units is questionable . Is there another option?
I do not nor will I ever have a installed generator
Thank you!!
Paul

[mlh]

Is there another option?
Yes. Disconnect it. Problem solved permanently.
Lynwood

[Daryles]

If you don't need the transfer switch you can bypass it by splicing the shore input wiring to the load (panel) wiring.

10 pcs 6 AWG 6 Gauge Butt Splice Connector Pure Copper Tin Coated Marine Grade Uninsulated - by WindyNation https://a.co/d/0oo4ib8

If you boondock and think you may use an inverter and run off the batteries, maybe a manual transfer switch.

APIELE Changeover Selector Switch Box 63A 3 Position 12 Terminals Poles 440V 3 Phase Universal Rotary Cam Selector https://a.co/d/auLBXXW

If you want another ATS, I just bought and installed this one. Pretty happy with it so far.

Go Power! TS-50 50 Amp Automatic Transfer Switch https://a.co/d/dd49sbM

https://www.montanaowners.com/forums...ad.php?t=90856

[LeftOverParts]

In case helpful, link to a troubleshooting guide and manual. The manual has contact info. Also, haven’t watched them but several YouTube troubleshooting videos out there.

Let us know what you find or if you hook-up a different system.

https://www.progressivedyn.com/wp-co...eshooting-.pdf

https://www.progressivedyn.com/wp-co...al-english.pdf

[paulw]

Hi thank you for the responses!
i just doubled my batteries from 95 ah to 200ah do you think this had anythng to do with this?? alyhough like I said battery or inverter on or off didnt matter
it still needed resetting...
I am very much leaning toward bypassing the switch
just curious.

[Carl n Susan]

Your battery amperage has nothing to do with the Transfer Switch problem. Batteries are 12V DC. The Transfer Switch is 120V AC only. There is a history of Transfer Switch failures. I believe Montana had a recall on them. They would replace the original with a different brand (that didn't have some feature that the original possessed) as I remember. Perhaps your is one on the recalled ones?

[Carl n Susan]

Your Transfer Switch is the one recalled. Read this Thread for more info.
https://www.montanaowners.com/forums...ad.php?t=90844

[paulw]

Hi,
I sent in the form per the link in that post. PD responded almost immediately. I filled out their warranty form and they are sending me a newer updated unit.
Thank you all for your help!
Paul