Ran fine last year, and tried to start up this year, and all I hear is a "click". no fan running, no cool air.
Assuming this is the outdoor unit you are hearing the "click" and then nothing then the most likely cause is no high voltage power to the outdoor unit. Breaker could have tripped or fuses blown.
SOURCE: Fan Works But Unit Can't Start Compressor
Friend,
NGFAM! Happy to assist you!
Sounds like the freon is low therefore it will not or stay on!
My words alone can not help you fix the unit!
You need service!
Let me know how it goes??
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SOURCE: Trane air handler cycling rapidly
Depending on the age of your Trane unit. The fan relay has a time delay. This is a solid state board on the relay. Most of the time they stick on or off. Check for loose wires. But start with relay.
SOURCE: compressor not starting
Most likely it is a small round overload found next to the wires going into the compressor. If that one seems ok then the next thing I would check is the capacitor. Might need a start assist.
If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61
SOURCE: Unit is running, but is no longer cooling. Fan is
not sure if it is a package system or a split but this is what you do.go outside where your outdoor machine is, after it has been shut off for awhile, and you should hear 2 distinct noises.1 is the outdoor fan, you should see it spinning.the other is a comppressor hum.some compressors have noise bags on them so listen closely thru the fan noise.if you hear no hum listen for a hum about every 2 to 5 minutes.if you hear this hum every so often, chances are you compressor is seized or stuck.the only thing to do there is get a tech and try a big boost to get it going.
SOURCE: Trane XE1200 Fan Motor
Most likely problem with a not-so-old motor is the run capacitor for the fan.
Some units have fan & compressor capacitor combined into one -- others are separate.
The capacitor can be tested with a multi-meter with an MFD setting -- it should read reasonably close to the specs marked on the capacitor.
Charlie
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