My air conditioner delivers cold air only in spurts. It then goes into fan mode for a few minutes, then to cold air in a few more minutes. It is over 100 degrees outside and the inside of the house is 85 or so. I have the temperature set at 74 degrees. Why does the cold air not pump out consistantly?

Sounds like the thermostat, the way to verify is to unplug indoor unit, remove thermostat, take pic of wiring with phone or label the wires as to the terminals. Carefully twist the yellow,(Y) Red (R) and the green (G) together. Plug the furnace back in, if the unit operates normally, replace the thermostat. I am basing this on the fact that the blower speed is changing. This could also be an anomaly within the circuit board in the furnace section, not likely though as the outside unit (condenser) is not controlled n by the indoor board unless this is a heat pump. hope this helps. D

Unit needs to be taken apart and washed out , also check to see if motor turns freely by hand , clean base of unit fans / blowers and drain ports / channels . Check outdoor motor to see if bearings are tight or fan overheats and cuts off if so replace outdoor motor .

Hello, the fan in the interior unit takes a few minutes to start in heating mode.
If you are talking of the fan in the exterior unit, then that fan is stuck or burned.
If you try to use in cold mode and the fan of the interior unit dont run, then you have problems in the electronic board.

Hi,

Here is a tip about troubleshooting your air conditioner...
There are many things that can cause your air conditioner not to cool...

AirConditioner Trouble - Review the Possibilities

heatman101

Fan mode only moves the air around the Room it will not cool make sure your on a cooling only setting

To get cold air set temp 23 degree and mode "cool".
Now symbols:
1. fan leaves - Fan only
2. Rain drop- Dry mode
3. Snow flake-Cool mode
4. Sun- Heat
5. A or AU- Auto mode.

The inside fan will run while the unit is in defrost. The electric heat strips should kick on to help prevent you from feeling this cold air. When the unit is in defrost it is essentially running in the A/C mode. You should make sure the electric heat elements are working then go from there.

probably (90 %) the compressor's bad, depnding on the repair cost you probbly want to just get another AC unit

You need to have an AC tech come out and do some preliminary testing on this.

We had a similar problem. The timer light would blink 3 times, pause, then blink 3 times again, pause, and so on. The fan was blowing lots of air out, but the air was not cold. The operation light was off.

The technician came and fixed it for free, since it's actually easy to fix. He went to our circuit-breaker box, and cut power (from the box) to the air conditioners for 30 seconds. Then, he restored power - problem fixed!

It's apparently because the air con goes into a "safety" mode when there's a power surge.