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Re: Won't turn on
The unit in your back yard is the outside half. The one that blows room temp air is the inside half.
The outside half is not working. No compressor, no fan. That is a problem with the power. You will find the bad parts very close to where the power wires go into the outside half. It might be a bad relay that connects both the fan and compressor to the power. It might be a 3 terminal capacitor. It might be burnt wires.
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Sounds like there is no control voltage. Either the transformer to reduce the voltage from 110 volts to 24 volts is not producing the 24 volts needed for control voltage, or most furnaces have a small 3 or 5 amp fuse mounted on the main control circuit board that may be blown. Other "outside circumstances" may involve a break in the thermostat wire...more than likely the red wire if you are getting nothing to work. I have seen evidence of "critters" that have chewed through the low voltage thermostat wiring that would keep the thermostat from controlling anything. To check this, go to the furnace and jumper the red & green wire to get the fan running just to isolate if it is a thermostat wiring severred. Good Luck.
the is a 24v wire that feeds from your thermostat to your unit, inside there is a contactor that engages, this makes a click sound as it really is a basic mechanical part the makes metal touch metal to allow current to flow through the system, perfectly normal, your hearing the low voltage engage the highvoltage at the contactor.
I have had a problem like this in the past you can try taking the electric access panel usually on the side of the equipment. then look inside you will see a wiring harness inside and it literally takes nothing to bump it loose. This happens when people move these units they are pretty fragile and can be tempermental. Make sure the unit is unplugged while you adjust the wiring harness. If that deosnt work your display board is probably bad. Hope that helps
Sounds like you have a high voltage problem.The disconnect or the breaker is possibly tripped.I doubt it is getting the required 240v electricity.The clicking you hear is the low voltage from the indoor unit/thermostat.
A lug is defined as a screw terminal made to accept one or more wires. Lugs as such are found in Circuit Breaker boxes (and on the circuit breakers themselves) Electrical junction boxes, Contactor relays such as found in Central Air units, those all being fairly large. There are also small lugs as would be associated with small wires such as thermostat wiring. Terminal diagrams for user-made connections are always provided with the unit being connected be it thermostat or HVAC unit. The thermostat comes with written documentation including diagrams, HVAC units typically have a diagram glued to the inside of the access panel.
Electricity can be your friend but can also kill you. Disconnect the power before altering or making any connections. If you don't know what you are doing, don't become a statistic, get help.
you need to verify that power is getting to the control panel, the green light does'nt mean that there is power to the unit, also verify power to the controll swithes/board and verify that the thermostat is closing and trying to turn the unit on
The clicking sound is usually the relays in the control unit making or releasing. When they click does anything turn on? Check the control unit that is located inside the lower unit of the air conditioner. Remove the cover and listen for the clicking sound. If it sounds as if the relays are clicking, try removing power from the thermostat and see if that stops it. There are three relays on the board, one is the compressor, one is the fan relay and the other is for heat. See if you can pinpoint which one is clicking and go from there. It is either that you have a bad thermostat or a bad relay board.
The click that you are hearing is the relay control board in the rooftop unit. This means that you are getting 12V to the board. It sounds like you are not getting 120V to the AC unit. Check the breakers in the breaker panel to make sure they are OK. If they are fine, then turn off the AC for 5 to 10 minutes and try again. There is a thermal protection device in the unit that prevents you from turning it right back on after a shut down. Try putting the thermostat to fan only operation. If the fan does not come on in fan only mode, then you have thrown a breaker.
That wire is to your thermostat which of course turns the A/C on/off. One thing you can do is to splice the wire back together w/ small wire nuts (available at hardware store or wal-mart, and just hook it up color to color and then tape w/ electrical tape. Make sure you turn your breaker off and turn off the thermostat control.