Bob N Deb
B.C.
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Joined: 11/04/2007
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I have a 1991 southwind with a Onan Marquis III generator
I have power to the plugs with shore line but when that is disconected and the Gen is running there is no power at the plugs. any suggestions as to where to start . it was working when I put it away for winter now no power
bob
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tuckerin
morristown, ny
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Joined: 09/28/2004
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Just the obvious like checking circuit breaker on the Onan, give the switch over a rap (gently) Good Luck
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chasfm11
Dallas/Ft Worth Areas
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Joined: 02/28/2004
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To be able to swap from shore to genset power, you either a transfer switch or, like we do, you have to plug the shore power plug into an outlet fed by the generator. If you have had this work before and didn't have to plug into a special outlet, it sounds like your transfer switch isn't working. When the genset comes on and the transfer switch control senses it, the relay inside should direct power from the genset to the outlets.
That assumes that the genset is delivering output and, as tuckerin suggested, there are one or two circuit breakers right on the genset that control power from it.
2000 Georgie Boy Landau 36'DP Cummins 5.9, Allison 1000 5sp
1994 Saturn SL1 Toad, Falcon2 Towbar, BrakeMaster Toad Brake
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Dog Trainer
Richmond Mi.
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Joined: 08/17/2006
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Check the breaker on the transfer switch. It may of kicked out when you started it. Also check the main breakers The Gen. could run even with the breakers open. I bet it is something simple.
93 Airstream 35' Dp
5.9 230 uprated to 300 HP
Allison MD 3060
Dutchess and Shadow (fur Bearing Children)
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bigdogxray
Caledonia Ontario
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Joined: 09/25/2007
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Check your GFI breakers on the wall switches as well. Had that problem once.
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gunny357
North Carolina
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Genset will stop running if it doesn't make power. Check the genset breaker.
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wa8yxm
Wherever I happen to park
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Joined: 07/04/2006
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Well, I have three possible answers
1: On the generator is at least one (likely 2) Circuit breakers. On my rig, up till fairly recently, it was not all that easy to tell if they were ON or OFF unless you looked real close (I re-labeled with a BIG label on the OFF side)
2: Some rigs have automatic transfer switches, NOT ALL, Mine is one, the ATS failed on my rig and... What you got is what I had
3: Rigs that do not have an ATS have a Manual transfer system, this system NORMALLY consists of an outlet. You plug the shore cord into this outlet when you want Generator power to the house.
Procedure:
1: Check the on-board breakers on the generator. NORMALLY Up is on if they are switches, however NORMALLY means, might be different, Switch them and see if it works.. Mine are horozontal so .. UP/Down don't help
If this makes no difference look for the Automatic transfer switch, You will need to trace wires to find it, I found it quickly by means of logic on my rig (It just had to be behind that panel,,, and there it was) I can not help you in tracing it other than to remind you copper is EXPENSIVE so they wish to make the runs as short as possible.
If you have an ATS: open the cabinet (PLEASE do this generator off and shore power unplugged) and see if you can find the hook up pattern, Also check the transfer relays (There should be 3 or 4 make sure they can switch freely, if they feel "Stuck" replace the switch. Measure generator out voltage, Hot to common,(Neutral) on the generator connection lines WITH the generator running (Start generator after you determine where to hook up) NOTE: if you measure across the two hot leads you may well see zero volts, but hot to common should read 120. If you have 120 there, make the same measurement on the LOAD (output) terminals. if you don't see 120 volts there, replace the switch.
IF you have 120 volts there.. You should have 120 to the rig
Nothin adds excitment like something that is none of your business
John is Near Kenwood TS-2000 housed in a 2005 Damon Intruder 377
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want-a-be
Indiana
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Had this problem once, it turned out to be the house batt. they would start the gen-set but would not trow the transfer switch. Changed out batt. and had power to the coach
Good Luck
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wa8yxm
Wherever I happen to park
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Now that is interesting ,,,, My transfer switch has no use for the house (or any other) battery, it's powered by the generator
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MichaelMarsh
Fareham England
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Joined: 02/21/2004
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We had a '91 Southwind a few years back and the transfer box was behind the AC power panel under the fridge area. All the power goes through there and provided you are someone who understands electrical safety procedures, you can easily check if power is there and whether the changeover switch is faulty. There is a time delay on changeover, and as others have said it could be simply a breaker. I don't think it has anything to do with the battery. Michael.
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