AboutJim Barnhart Expertise Fifty + years in Heating, Ventilating, Air Conditioning, Sheet Metal Manufacturing.
Semi retired since 1995,
Experience Answer questions about , residential and commercial.
Answer questions about sheet metal fabrication.
Fifty years plus experience.
No answers for oil equipment, No answers for kitchen appliances, No answers for laundry appliances.
Question Replaced an old t-stat recently with a new programmable t-stat (ritetemp model 6025). Initially had issues because person who installed or "jury rigged" the AC before us had used a non standardized color coding system on the wires.
Finally all was well. AC turns on fine but fan switch has to be on the ON position or no air blows through the vents. Turn on COOL and put fan on ON and everything seems to work fine. T-stat reaches target temperature and AC turns off but fan keeps going pulling in "hot" outside air (atleast I think it's outside air). Only way to turn off the fan is to put the fan switch to AUTO.
If AC is turned on to COOL and fan switch on AUTO, you can hear AC kick on but no air. (did i say this already?)
You can put the AC switch to OFF and leave fan switch to ON and fan keeps blowing warm air.
I have a Goodman AC model # PH036-1A and wires I've connected to T-stat are as follows:
Y on stat to Y on AC (yellow wire)
Rh bridged Rc to R on AC (red wire)
O on stat to O on AC (white even though it should be orange?)
G on stat to G on AC (green wire)
C on stat to C on AC (blue wire)
What did I do wrong?
By the way I live in hot hot Arizona so I don't really care for any heat.
Answer Kevin,
First of all it doesn't make any difference in how something operates because of the color of the wire.
Wire color is just a means of identification.
You could use any color from "Y" post to "Y" as long as it's the same strand.
It sounds like you have everything wired properly? I don't know your thermostat but either the thermostat is faulty, there is a bad wire or connection someplace along the line or the unit has a faulty fan switching mechanism?
Also I don't know what type of unit you have, split or self contained?
The "AC" designation covers a lot of possibilities?
