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wa8yxm

Wherever I happen to park

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Posted: 06/08/19 05:08pm Link  |  Quote  |  Print  |  Notify Moderator

Where I am just now running one is giving me fits.> They keep overloadign the 20 amp branch breaker.. I can't go topside till Monday at the soonest so....


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pianotuna

Regina, SK, Canada

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Posted: 06/08/19 06:38pm Link  |  Quote  |  Print  |  Notify Moderator

If you mean the "standard" low voltage protection from Progressive, or Surge Guard, 103 volts is, too low for my comfort zone.

It's not pretty when voltage momentarily drops to 80.

What are you using for amperage protection?

real4u2c wrote:

and excellent line voltage / and amperage protection in the Rv, fed from my 200 amp house panel.



Regards, Don
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SidecarFlip

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Posted: 06/08/19 07:38pm Link  |  Quote  |  Print  |  Notify Moderator

Just be sure before you stick your fingers in the capacitor cage you short across the terminals on each and every capacitor. They can kill you if the discharge into your body.


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real4u2c

Hampton, Va.

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Posted: 06/09/19 03:14pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks for all the help. I climbed on the roof, removed the shells, and the motor run capacitor on the forward ac was exploded, goo everywhere in its cage, Thus the smell. The other capacitors were somewhat melted. The rear ac wasnt as dramatic, things got warm, but no explosion. Now comes the frustration of finding the parts and more Virginia humidity on the rooftop.


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real4u2c

Hampton, Va.

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Posted: 06/09/19 03:19pm Link  |  Quote  |  Print  |  Notify Moderator

And the search continues on the "WHY" all of a sudden this decide to happen, I also looked hard for frayed wires, i searched all over my rig for that possibilty, and even changed my rv extension cord in the off chance their was a break in the plug ends,.

Dale.Traveling

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Posted: 06/09/19 03:41pm Link  |  Quote  |  Print  |  Notify Moderator

If you find the "why", that "why" is probably hanging out with the "Meaning of Life". Caps blow. Had the start cap on the much newer homestead heat pump failed last year with no warning on the first 90 degree Friday evening a few months after the warranty expired.

Replacementing caps are easy to do. Additional info - Installing Hard Start Capacitor


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DFord

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Posted: 06/09/19 03:48pm Link  |  Quote  |  Print  |  Notify Moderator

If there's any puffiness to any of the capacitors - replace them.
If there's any sign of damage to any of the capacitors - replace them.

"Run" capacitors are in metal cans and offer a failure is indicated by the top bulging up - a sure sign it's bad.

"Start" capacitors are usually in a hard plastic shell. The number of starts per house is limited and likewise, if they're left in the circuit very long, they'll overheat and began spewing their contents just before they short out and become useless.

It's also possible for them to go bad without any sign of damage. In that case, you'll need a meter to tell if they're any good.

http://www.capacitorformotor.com/starting_capacitor.html

http://www.hvachowto.com/2014/11/12/start-run-capacitor/


Don Ford
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wildmanbaker

Kennewick, Washington

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Posted: 06/09/19 05:33pm Link  |  Quote  |  Print  |  Notify Moderator

If you need the caps in a hurry, try an H & V firm/installer. They will be more that on the interweb, but if you need them, you need them. Just like the price of fuel in out of the way places, it may be high, but a bargain if you really need it.


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real4u2c

Hampton, Va.

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Posted: 07/20/19 09:12am Link  |  Quote  |  Print  |  Notify Moderator

Okay, I replaced all the capacitors using the part numbers on the older capacitors, one at a time , wire for wire so no cross connection would take place. I checked continuity across the compressor windings, all good, I inspected anything electrical on the roof for frayed wires, bad connections, terminals, 3 corroded terminals which I replaced with correct size. Plugged in house juice, front ac ran for 45 seconds, then died, almost same for rear ac. Climbed back on the roof, same capacitors as before were blown. Dam this has stumped me. I have checked everything electrical & mechanical hand over hand of what I could get access too.

MountainAir05

New Mexico

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Posted: 07/20/19 10:53am Link  |  Quote  |  Print  |  Notify Moderator

Have you check the connections in the power panel , cord that has been posted, and also try only one unit and see. As units get older they draw a little bit more usually. If it blew the cap with only one unit and all the connections are good , then the compressor might have a short in the winding. Doug might be able to give you the ohms, and the max starting amps.

* This post was edited 07/20/19 11:01am by MountainAir05 *

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