Skip to main content ↑ ↓
Topic: Silent transfer switch? (Read 1548 times) previous topic - next topic

Re: Silent transfer switch?

Reply #25 –
Elliot,
I'm having trouble with my engine batteries charging and when I lifted up the bed and moved the wooden cover I did hear some humming.😊
Frank & Daisy
NO LONGER  "looking for the perfect Foretravel
36' or less non slide preferred."  She has been found and is ours.
2003 U320 36' non slide  Unit 6103
Cummins ISM 450
Allison 4000MH

Re: Silent transfer switch?

Reply #26 –
Quote from: Elliott –
This "$10,000 in the first year of ownership" rule you guys came up with is starting to look optimistic

;D  Yes....... we are a bunch of "optimists"  8)
Justin & Cathy Byrd
1995 U280 "Old Faithful"
36' Build #4673
C8.3 Cummins
Allison MD3060R 6 speed - retarder
Powertech 10KW  4cyl Kubota

Re: Silent transfer switch?

Reply #27 –
Quote from: Lt403 –
Elliot,
I'm having trouble with my engine batteries charging and when I lifted up the bed and moved the wooden cover I did hear some humming.😊

A hum from the ATS is totally unrelated to chassis battery charging.  The ATS is part of the 120 VAC system and allows only one source of 120 VAC at a time-- either shore power or generator.

From the factory, there is no means of charging the chassis batteries from 120 VAC, only the alternator.  Have you or a previous owner added a charge device to keep the chassis batteries charged.

OR, are you saying they don't charge from the alternator with the engine running?
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Silent transfer switch?

Reply #28 –
Quote from: wolfe10 –
OR, are you saying they don't charge from the alternator with the engine running?
Yes, that is what he is saying, in another concurrent thread.

Engine batteries not charging while engine is on
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Silent transfer switch?

Reply #29 –
Also cleaning contactor relay coil to be sure solenoid movable parts are clean and fully close.