Question about Heating & Cooling
4TTX6036B1000AA is matched to a XV80 furnace / air handler. I tested the thermostat via bypass and that checked out. The system is equipped with a low pressure switch but that doesn't seem like the issue. The system does have a float switch, but the pan is bone dry. The replacement motor for this unit is extremely expensive, $600-$800, I am trying to figure out what is wrong exactly, but the contractor is throwing me off.
SOURCE: Air Conditioner malfunction
Hi, Sounds like you have a short in the control circuit to me. Turn off all power going to the unit. Write down or otherwise mark the wires leaving the control board going to the thermostat. Remove them from the control board. Replace the fuse. Turn power back on and see if the fan still runs. If it does, check and or replace the heat limit switch that brings the fan on during the heat cycle. It may just need adjusted. If the fuse blows, I would think that the control board is probably bad. If it doesn't blow, Remove the thermostat. Leaving all thermostat wires open check them with an Ohm meter. There should be no continuity between them. Twist all the wires together at one end and ohm them again at the other end. You should have complete continuity on all wires. If the wiring checks out, down power the unit. Double check your wire colors and rewire the control board. With all wires open at the thermostat, turn the power back on. Touch the RED wire to the YELLOW wire. The Condensing unit should come on. Touch the RED wire to the GREEN wire. The fan should come on. Touch the RED wire to the WHITE wire. The heat should come on. Down power the unit. Replace the thermostat. Test unit. If the fuse has lasted ok but blows now it is either wired wrong at the Thermostat or the thermostat is bad. I hope I have helped. NOTE: If you can not understand these instructions. Call a licensed Heating / Air conditioning company. kstfas
Posted on Sep 23, 2007
blow out the drain line from the coil to the pump the clog is there causing the pan to fill up and trip off
Posted on May 10, 2008
I think...yes. Stopping the machine before the water fills the secondary pan couldn't hurt, but don't take the secondary switch out. (Wire it in series with the primary switch.) Air conditioners get plugged up in places besides the primary drain pipe and the secondary switch wii catch anything the first one misses.
Posted on Jul 25, 2008
THIS IS A COMMON PROBLEM WITH THE DOOR SWITCHES, MY FIRST ANSWER WOULD BE REPLACE THE SWITCH SECOND WOULD BE OPEN THE DOOR AND PUSH THE BUTTON IN AND SEE IF THE FURNACE WILL WORK. THIS SWITCH IS JUST A DOOR SAFTEY IF THIS WORKS. I HAVE TAPED A PIECE ON THE INSIDE OF THE DOOR WHERE THE SWITCH WILL HIT THE DOOR ABOUT A 1/4 INCH THICK AND SEE IF THIS WILL GET YOU RUNNING UNTILL YOU CAN GET A SWITCH
Posted on Oct 12, 2009
Hello, if you take the L1 wire and jump it with tje high speed motor wire you can bypass the board, if this turns on the motor then you board is fried. If it does not work thenthe motor is shot and muat be Replaced. Also make sure the capacitor is not damagec.
Posted on Sep 19, 2011
Testimonial: "Thanks. You are on the right track, however, tech said that the way the motor was wired, they could not do it? She said there are 4 wires leading out?"
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