Air Conditioning Repair

One of the first steps to take when you have a fault with your air conditioning unit is to read the owners manual to see if there is anything in there that will diagnose the fault for you. If you are unable to find the air conditioning units manual you can look on the internet to find it or require one from the manufacturer.

Below are some simple steps to fix minor errors.

1, The first thing to try is to shut the power down to the unit for 10 minutes and then power it back on, this may cure the problem.

2, If you have an outdoor unit and you think it may have become blocked you can rake any leaves or debris away from the outdoor condenser and see if that works.

3, Remove any protective grille or cover from the condense's fins.

4, you can use a soft brush or cloth to clean dirt and debris from the air conditioning units fins, then vacuum them with the hoovers brush attachment.

5, Unscrew and lift the top grille off the unit, if possible. If the fan is attached to the grille, be careful not to pull any wires loose.

6, From inside the unit, hose out the fins (protect the wiring and motor with plastic). If your owner's manual calls for lubricating the motor, do that now--don't over-lubricate.

7, Then reassemble the unit.

8, To test it, turn the power on and set the thermostat to turn the unit on.

Let it run for a few minutes, then feel the two pipes that connect to the condenser unit (slide any insulation back).

One should feel warm, the other cool. Otherwise, call an air conditioning technician--the refrigerant may need to be recharged.

Doesn't turn on
If the central air conditioner doesn't go on automatically:

1, Be sure the thermostat is set to "cool" and set below room temperature.

2, A central air conditioner should be on a dedicated 240-volt circuit; check the main electrical panel and any secondary circuit panels for a tripped breaker or blown fuse. If you find the problem here, reset the breaker or replace the fuse.

3, Make sure the furnace power switch is turned on and that the outdoor condenser's power switch, mounted on the outdoor unit, hasn't been shut off. Also be sure the 240-volt disconnect next to the compressor (in a metal box, usually mounted on the house wall) hasn't been shut off.

4, Turn off the power to the air conditioner and check the thermostat.

5, Remove the thermostat's cover and unscrew the wire from the Y terminal.

6, Turn the air conditioning back on.

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