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BODYGUARD_29

Peoria, AZ

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Posted: 05/15/19 11:00am Link  |  Quote  |  Print  |  Notify Moderator

I did reset the breaker inside the unit. That made no difference. I haven't checked the fuse yet.

Seattle Steve

Tucson

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Posted: 05/15/19 11:55am Link  |  Quote  |  Print  |  Notify Moderator

Most AC units require 12-15 amps, and up to 50% more to start up. If you were running it off a standard 15 amp outlet, then feeding through an extension cord of too small a gauge (most are 14-16 gauge, you need 10-12) it's possible you were only getting 8-10 amps at the motorhome. It's entirely possible the AC compressor motor was damaged.

Fuses protect from too much power, not too little.

bobndot

USA

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Posted: 05/15/19 09:20pm Link  |  Quote  |  Print  |  Notify Moderator

(fan, A/C, heater) and nothing turned on

Do you think it could be the fan ? I have had fan blades hang up and not spin. I gave the blades/fins a spin by hand while squirting a little lubricant on the fan shaft.

cavie

Port Charlotte Fl/ Hindsdale MA

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Posted: 05/16/19 05:41am Link  |  Quote  |  Print  |  Notify Moderator

Stop guessing and start checking. Use a volt meter. Measure the voltage at the A/C breaker in the panel. Turn on the T-stat. Measure the voltage at the A/C on the roof. This will require removing the cover. There is no fuse to check.


2011 Keystone Sprinter 323BHS. Retired Master Electrician. Retired Building Inspector.

All Motor Homes are RV's. All RV's are not Motor Homes.

BODYGUARD_29

Peoria, AZ

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Posted: 05/16/19 07:53am Link  |  Quote  |  Print  |  Notify Moderator

After doing some further research, it appears that there is a good chance that it could be the starter capacitor. Does anyone know if the capacitor will indicate it is bad, like a fuse does? If so, what is the indicator?

dougrainer

Carrolton, Texas

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Posted: 05/21/19 09:58am Link  |  Quote  |  Print  |  Notify Moderator

It takes 12 volts to operate the AC controls. Do you have the 12 volt coach power turned ON? If you have ceiling lights the Power is turned on. Doug

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