โSep-15-2021 12:12 PM
โSep-16-2021 08:58 AM
Ron Nielson wrote:
Yes, I misspoke. I was referring to the Y terminal. No signal there when in cooling mode. Thanks for noticing and keeping anyone else from being confused.
โSep-16-2021 08:19 AM
โSep-16-2021 06:34 AM
Ron Nielson wrote:
Thanks for the replies. I have been reading Doug for years and appreciate all the help he has offered.
One thing that quite surprises me is that the signal from the thermostat to the C term on the unit has no(.8V) voltage on it. I expected to find a B+ voltage there. Why no voltage?
โSep-16-2021 06:30 AM
โSep-16-2021 05:44 AM
โSep-15-2021 10:11 PM
dougrainer wrote:
There is no low pressure cut off on his AC. You should have 12 volts on the YELLOW wire or "Y" terminal at the upper control board. If you do NOT, just jumper the 12 volts from either the GL(low) or GH(high) fan wire. Fan on LO and the GL will have 12 volts. GH and on HIGH it will have 12 volts. IF the Compressor relay fails to close and engage the compressor the upper board is probably bad. Doug
โSep-15-2021 05:19 PM
โSep-15-2021 12:20 PM