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Topic: 1998 U295 Electrical issue (Read 341 times) previous topic - next topic

1998 U295 Electrical issue

We have 110 volts .coming into the coach but electric is only running off the inverter draining our batteries. Help

Re: 1998 U295 Electrical issue

Reply #1
Welcome.

How have you verified that 120 VAC is actually into the coach?

Are you plugged into 15, 30 or 50 amp outlet.  And, assume you have verified power at the outlet.
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: 1998 U295 Electrical issue

Reply #2
Typical electrical power path (things to check):

A - Check for good 120 VAC shore power at outlet (breaker not tripped)

B - Check for good 120 VAC power at input side and output side of the Automatic Transfer Switch (ATS).

C - Check inverter/charger for proper operation.  The internal transfer switch should automatically pass through 120 VAC shore power.


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
"It goes without saying..."

Re: 1998 U295 Electrical issue

Reply #3
If you still have the black heart inverter try smacking on with a wooden object on the front where the on off switch is also make sure that the breaker for the charger isn't tripped.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: 1998 U295 Electrical issue

Reply #4
If you have an EMS (like a Progressive unit) and shore voltage is low, it won't let power pass.  It would display an error in that case.  Just throwing that out there.

What does shore voltage measure at the power pole?

What is the actual voltage as measured on the input side of the main transfer switch?  If you have good voltage at the power pole but none on the input side of the transfer switch, suspect the shore cord or shoreline reel (if you have the latter).

If you have good voltage on the input of the transfer switch but no output, one of the relays in the transfer switch could be bad.

Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

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