Foretravel Owners' Forum

Foretravel Motorhome Forums => Foretravel Tech Talk => Topic started by: Peter on September 14, 2025, 03:54:34 pm

Title: No power when plugged in
Post by: Peter on September 14, 2025, 03:54:34 pm
Until recently i have my coach plugged into shore power and everything was fine.  Power showed in the power watch meter and everything charged etc as normal.
I took the coach out to put on the street unplugged everything and then ran the generator to test ac' s etc
Turned off the generator and then plugged it in again. I hear a click from the transfer box. nothing shows in the power watch meter
Is there a breaker or fuse i should be looking at resetting??
This is a first
Title: Re: No power when plugged in
Post by: wolfe10 on September 14, 2025, 04:03:59 pm
With generator off, shore power disconnected, remove the cover for the ATS (Automatic Transfer Switch).

Check that all screws are tight and no wires burned.

Plug in to shore power.

Check for power IN and OUT
Title: Re: No power when plugged in
Post by: Chuck & Jeannie on September 14, 2025, 04:07:48 pm
Is your shore power outlet 50 amp?

First place to look for trouble is Switching Relay #1 (see diagram linked below).  It is the one that selects between shore power and generator.  After sitting for a while in one position, it is possible for the contactors inside the box to get "sticky" and not reposition when power input is changed.

A little light mechanical persuasion with rubber mallet on the side of the ATS box might get things moving.  If you are comfortable with opening the box up when the power is "live" you can move the contactors with a non conducting tool, like a piece of wood dowel.

https://www.foreforums.com/index.php?media/item/a-2700-07-1995-u295-u320-110v-elect-relay-system-w.5206/
Title: Re: No power when plugged in
Post by: AC7880 on September 14, 2025, 04:20:22 pm
Perhaps voltage is under or over what the power monitor will let in. (if the 98 has the power monitor)
Title: Re: No power when plugged in
Post by: Chuck & Jeannie on September 14, 2025, 04:21:09 pm
How to check a typical ATS:

https://www.youtube.com/watch?v=TpPkj8aTcyE
Title: Re: No power when plugged in
Post by: Michelle on September 14, 2025, 04:25:32 pm
Perhaps voltage is under or over what the power monitor will let in. (if the 98 has the power monitor)

Great point!  If there's a built-in Progressive EMS, that would prevent low or high voltage from passing.

('98 wouldn't have had the Maverick transfer switch with the over/under relays.  That didn't show up until after 2000.)
Title: Re: No power when plugged in
Post by: AC7880 on September 14, 2025, 04:31:38 pm
No Shore Power / ATS issue? (https://www.foreforums.com/index.php?topic=47481.msg481360#msg481360) 
Title: Re: No power when plugged in
Post by: Peter on September 14, 2025, 04:36:48 pm
Thanks for the response
After checking my EMSLCHW50 it was evident. It said E 1 reverse polarity. So i got out my portable power watchdog to confirm and sure enough it was a bad extension cord. After replacing everything was normal!!