Question about Heating & Cooling
Hi, If the main breaker is fine, the box at the unit is the disconnect box for it. If you pull the block out of the box, you will have a plastic cover there. Remove this cover and there are 2- fuses inside. If you have a meter you can ohm them out. If not, pick up 2 of the same amps. Probably 30 to 35 amps depending on the size of your unit. I am not sure about this one wire you say that is pulled out. If its not coming from the disconnect box there at the unit, or its not the small conductor thermostat wiring, you should try and find out what it is. If you have no dogs that may have chewed the stat wires, I wouldn't think this wire has any thing to do with the a/c. If the indoor unit is also off, remove the control panel. This is a new system so look for the circuit control board. It will have a 3 to 5 amp automotive type plug in fuse in it. Check to see if it has blown. You can normally tell by looking at the top metal strip, it will be burned, blackened. If your not sure, just replace it. You should have a Red led light on the board, or a hole to peep through to see if you can see if the led is on. If it is on, the fuse is good and we will need to go further.You may have a stat problem but first check these things. If the indoor unit is off to, start there looking for that small fuse. This is more then likely the fault. Keep me posted,
PS When you remove the panel on the indoor unit, some will have a switch that kills the power when you do take it off. If so, you can tape it down to restore power. Make sure you remove the tape when done and put the panel on right or the unit will not start. I would start at the indoor unit control board.
Posted on Jun 04, 2010
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Posted on Jan 02, 2017
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