Quote:
Originally Posted by Dammitsass
well with no way to get start capacitor on a sunday i swapped #1 and #2 start capacitors with each other and the results did not change. #2 comp still not kicking in. correction in what i stated earlier though-running volt meter leads on line in (live wire) and #2 capacitor (as ground) shows 110v before trying to start. after trying to start it shows 240v, even with ground lead on ground block and live lead on one side of run capacitor ( purple wire that goes to comp,red wire that goes to start cap). did not have time to switch run cap.to see if that would start #2 comp.,had to get rv back in storage so will have to try again next weekend.
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the ac logic system requires the #1 system to be running normally before the #2 system will start.
my ac failed on a 100+ degree holiday weekend day.
as a trouble shooting procedure, i turned off the #2 system cb and my #1 system still would not start. the #2 would not start because of the logic system.
i then turned both cb's off and opened the ac compartment door. it hinges up after removing 2 screws.
then i removed the electric cover plate on the upper aft of the ac unit. there are red and green lights on the panel to aid in trouble shooting.
i then switched all the wiring so that the #1 system actually runs off of the #2 cb and electrical components. be careful here as the capacitors store a lot of power and can bite you.
my #1 system operated normally off of the #2 cb with the #1 cb turned off. so i had 1/2 of my system operating for the weekend.
i found that my #1 start relay had failed. the jumper wire on the relay was burned in half too. i also installed a new #1 hard start capacitor. the relay and capacitor are not expensive. i made a new jumper wire from #10 awg primary wire and connectors. i kept the old capacitor as a spare.
one reason that you should not leave your system configured bass ackwards is that the actual #1 compressor system has freeze protection thermistor while the #2 compressor system does not.
clear as mud huh?
i THINK i have my #1's and #2's straight.
the bottom line is that you are fooling the ac logic system into believing that the #1 system is working normally, but it is actually using the #2 system components to operate the #1 system BY ITSELF. (important)
both of my systems have been working normally for 3+ years.
the relay is pn 1460-1131. the hard start capacitor is pn 8333a9021.
https://sites.google.com/site/billmarie2008/