If you hear a clicking sound from solenoid liquid line valve you will also hear a hizzling sound indicating equilizing pressure of the high and low side of the system. If not, check the high and low side pressure of the system with your gauge manifold. All valves of your manifold should be closed when you attached the hoses respectively. If there is no readings from both gauges there is no refrgerant from your system. The AC unit will not start to run due to low pressure because the low pressure switch is open. Check for system leakage and repair the leakage before adding Freon gas.
I maybe able to help you but you need to clearly tell me again.
SOURCE: Outside unit will not operate
Sounds like a bad fan motor. Inside fan runs, compressor runs. Outside fan. Are your contactors pulled in when thermostat set on cool? If not might be a contactor. If contactor not pulled in touch the top of it with the end of a screwdriver. If fan spins turn unit off a buy a contactor...
Tip: Always make sure power at disconnect is off
SOURCE: I have a Carrier 38tra048340
Blank screen sounds like a fried thermosat. Abrupt outages can affect certain types of thermostats. Make a jumper wire and jump across R and G. See if you get any action from anywhere. If a fan or compressor kicks in you know you have a burned out thermosat...
SOURCE: My Carrier AC fan will not turn, only blows out warm air.
Breaker has popped either at breaker box or at the safety shut off switch. Fuses are blown or the sending unit has popped.
SOURCE: Rheem Classic X Humming
does the indoor fan come on if fan comes on then the problem is out side if the fan is not coming on and the breaker blows this will turn off the out door unit also due to the 24v transformer is located in the indoor unit your system has two breakers one for out door and one for indoor units as far as your contactor goes with power off look at the contacts if pitted bad replace it most need replaced after 5yrs also check for voltage drop on the load side look at the capacitor to make sure it is not swelled up on top if so then bad unplug the fan motor and bump the contactor with an insulated object to make sure the compressor is running if not with power off remove the cap on the side of the compressor and look to see if wires are connected good they some times get lose and ends burn off also on the contactor they some times buzz when bad hope this helps with your problem
SOURCE: Carrier Central Air Conditioner
If nothing is happening could be thermostat control wires cut? try using a jumper wire @ the furnace their will be a board with the letters R G W Y B try to jumper R to G the fan should come on. if not its in the controls of the furnace if fan comes on replace the thermostat. don't short the wires you will blow that small fuse. T
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