T bone
Top O Texas
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We were in 104 degree temps last week(Vernon,Tx) and the front A/C started acting up. It would really pull down and at one time it quit cooling at all.(This happened just as company showed up for fajitas) I thought it might be the Franks auto-former or low voltage. I fired up the generator and it came on and cooled nicely. Then I shut it all down and re-connected to shore power and it began cooling again.But it still would pull down below 100 occasionally on my analog gage in the receptacle.Any good ideas on where to start? Maybe a Start capacitor or maybe a new A/C.By the way, the A/C in question is a 13500 Duo-Therm.ON EDIT. Oh, I forgot, it also did it once on generator, it really pulled that little 5500 Onan down.Lasts about 3-5 seconds and is good for a while maybe hours, maybe minutes.
* This post was
edited 08/14/08 07:10pm by T bone *
1999 Georgetown 325S,V-10 Ford.
2002 Ford Ranger Edge toad
carrying a 2001 Yamaha Warrior.
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Don Don
Pleasant Grove, AL {Suburb of Birmingham}
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If it was 104 I would think there was a lot of power being pulled where you were. Sounds like a usage issue. I don't think you have a problem except low voltage from so much power being used and overloading the system.
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alcolby
yuma az.
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If it's already running that would eliminate a start capacitor, you probably don't even have a start capacitor, just a run capacitor unless you have added a hard start kit.
As it runs ok on the gen set it is low volts at the pedastal, running or trying to run it at 100 vac will ruin the compressor motor in a short time.
The fact that it did it once on the genset was probably due to trying to start it without waiting for the pressures to equalize.
Al C
T bone wrote:We were in 104 degree temps last week(Vernon,Tx) and the front A/C started acting up. It would really pull down and at one time it quit cooling at all.(This happened just as company showed up for fajitas) I thought it might be the Franks auto-former or low voltage. I fired up the generator and it came on and cooled nicely. Then I shut it all down and re-connected to shore power and it began cooling again.But it still would pull down below 100 occasionally on my analog gage in the receptacle.Any good ideas on where to start? Maybe a Start capacitor or maybe a new A/C.By the way, the A/C in question is a 13500 Duo-Therm.ON EDIT. Oh, I forgot, it also did it once on generator, it really pulled that little 5500 Onan down.Lasts about 3-5 seconds and is good for a while maybe hours, maybe minutes.
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AlanB
Sierra Vista, AZ
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Classic symptoms of compressor cycling OFF and ON before the head pressure dies down. It will draw a lot of amps trying to start until the thermal CB trips. Try setting the thermostat to a much colder setting so the compressor stays on all the time. Also, run the fan on HIGH.
AlanB
2002 Holiday Rambler Imperial 40PKDD Cummins ISL
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CSpenceFLY
Macon,Ga
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Classic example of low voltage at the pedestal. Don't run your stuff on 100 volts.
"You're lucky to be alive my friend."
Quote from the "Do it yourself police" and many others that have known me.
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Nick Badame Refrig.
Cape May Court House, N.J.
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All the above answers are Correct!
I would also advise you to inspect the condencer coil for dirt build up.
Low park voltage on hot days is a common problem.
Good Luck
nick-
MCI 102C3 40' 2006' Bus Conversion by Atlantic Custom Coach
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T bone
Top O Texas
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I had 106 volts at the pedestal but my Franks was boosting it to 116.The rear A/C (11000 BTU) was doing fine and not surging and dipping.
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garry1p
Broken Arrow, OK, USA
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Sounds more like a voltage problem rather than the A/C.
Running the A/C on 100V will cause the A/C to self destruct, you need at least 105 and I wouldn't run mine below 108.
Garry1p
1990 Holiday Rambler Aluma Lite XL
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SunflyerA
Andover, Minnesota USA
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T bone wrote:I had 106 volts at the pedestal but my Franks was boosting it to 116.The rear A/C (11000 BTU) was doing fine and not surging and dipping.
I have little knowledge here so this is just a question; Is the voltage supplied by the Franks legitimate? That is; is it the same as power supplied at the pedestal?
sunflyer
2005 Fleetwood Excursion 39S
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alcolby
yuma az.
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The voltage is boosted as needed by the autoformer, that's what they do.
Sometimes it's the same, sometimes it is boosted.
If it is a buck and boost, it will curtail high volts.
{usually not a problem}
Al C
____________________________________________________________________
I have little knowledge here so this is just a question; Is the voltage supplied by the Franks legitimate? That is; is it the same as power supplied at the pedestal ?
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