NAUTIQUE
SOUTHEASTERN MA.
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Seem to be having some sort of A/C problem.
A/C will run and blow cold air, but sounds pretty loud and seems to be struggling.
This runs on shore power and will also run off the genny, but seems to bog the genny down. At some point it actually stalls out and kills the genny. It has popped the breaker at the breaker box and even the 12V breaker in the engine compartment (shutting off all 12V accessories in the rig).
I went up on the roof and removed the A/C shroud but nothing looked overly dirty or clogged.
I hate electrical and no clue when it comes to the A/C.
Any suggestions on troubleshooting (to save a trip to a dealer) would be greatly appreciated!
* This post was
edited 09/10/09 05:00am by NAUTIQUE *
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stevesandidge
kingsport tn
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sounds like you need to check the quality of your power from the genset. i use the good govener that i got a camping world that plugs into an outlet and tells me the voltage and frequency of what my power is. otherwise you will need a meter, and it sounds like you don't have one.
steve
steve sandidge
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NAUTIQUE
SOUTHEASTERN MA.
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stevesandidge wrote:sounds like you need to check the quality of your power from the genset. i use the good govener that i got a camping world that plugs into an outlet and tells me the voltage and frequency of what my power is. otherwise you will need a meter, and it sounds like you don't have one.
steve
Steve,
I think that I can check it out tonight.
My dad's better with electrical than I am and he has one of those dial test meters with the black & red probes.
I'm assuming to check this, I'd start genny, let warm up, get a reading from an outlet, start A/C, get another reading from an outlet??
* This post was
edited 09/08/09 01:28pm by NAUTIQUE *
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Handbasket
Asheville, NC
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You may get better answers if you state what size & brand of A/C and generator you have.
Jim, "Mo' coffee!"
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NAUTIQUE
SOUTHEASTERN MA.
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Handbasket wrote:You may get better answers if you state what size & brand of A/C and generator you have.
Jim, "Mo' coffee!"
You're right Jim!
Onan Emerald Plus 4000 & a 15,000 ducted Duo-Therm Quite Cool.
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NAUTIQUE
SOUTHEASTERN MA.
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Ok - Checked out the volts at the kitchen plug:
Plugged into stick house (20amp)
115-118 volts & then 102-105 volts when A/C is turned on.
Plugged into Genny
131-135 volts & then 126-128 volts when A/C is turned on.
?????????????????????????????????????????????????????????????
A/C blows cold air, but just sounds like it's straining/surging?
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MI Director
Michigan
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That's volt from the house is too low when the A/C is on. Should be no lower that 105 or you'll be do damage to your equipment.
The genny is too high with no load and should not be over 130 volts max.
Might have a run cap going bad on the A/C.
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NAUTIQUE
SOUTHEASTERN MA.
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Run Cap?
Any suggestions on where I should go from here?
Trip to a service person?
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NAUTIQUE
SOUTHEASTERN MA.
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Does anyone think that taking a shot at the Hard Start Capacitor MOD would be a possible soloution to this problem??
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MrWizard
Van Nuys, Ca
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I think with a 15k btu A/C and a 4kw generator, you are on the ragged edge with the genny, any extra 'high heat', 'high load' re-start on the A/C compressor is pushing the Onan pass its max capability
pour several cans of 'sea foam' engine cleaner into you gas tank, and put a suppco hard start kit on the A/C compressor, and you might want to put the A/C on and leave it there and turn the it to med or low but leave it run full time ( not cycling ), IF your A/C cycles on/off without a fan cycle to lower head pressure on the A/C compressor it is going to cause extreme peak surge currents that the 4kw can't deliver.
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