Not cooling Unit runs but the Air Cond light does not come on and the air doesn't get cold

Short of gas, have it refilled
Bruno

possibly low in gas, needs servicing

either the fuses are blown or a relay is not working right..

coolant temp sensor tells the computer how hot or cold the engine is so it can regulate the idle and fuel mixture, when it fails there usually is no cooling fan and you will have trouble starting the engine and keeping it running.

Several problems with these units, (I just finished rebuilding mine). sounds like the fan
relay has failed. This may be due to water dripping on it. Also the sequencers that
were supplied often popped apart( the new ones are clipped together with metal bands)
I would replace both as I have already done.
The outdoor condenser sounds like it is stuck, which is a reversing valve problem.
If the lineset is cool but not really cold, then this is the problem.
luckily the parts are inexpensive for the air handler but the outdoor unit problem
is expensive to repair and I just replaced it as a unit, The good news is that it dropped
the electric bill 84 dollars the first month in february heat mode.
If you can install a new system, I would recommend a Goodman 13 seer minimum. They
are efficient, quiet and less expensive, if your unit is 13 seer on the indoor
air handler it can be
fitted up with a new outdoor condenser. Hope this is useful.

Try going outside and locate your outdoor unit. If the thermostat is on, and the fan is running inside, the outdoor unit should be on as well. If it isn't, locate the circuit breakers in your breaker box. There will be two. Trip them back and all the way forward.

If the unit is running outside, sometimes the air cond contractor forgets to come back and charge the unit with refrigerant. In this case be sure to contact the air cond contractor that installed the unit.

check the and see if the condenser fan is running. you will find it if you take the top off also check and see if the condenser coil is clean. if it is dirty or the fan under the top is not running it will cause the compressor to short cycle on limits or overload.

Hi,
The best button to push for that is the cool button, then turn the thermostat all the way to cold.
The fan button will only move air around and will do no cooling.
The dry button is for dehumidification, in this mode the unit will run a low speed fan over the cooling coil to take the water out of the air.

So for cooling your best option is to push the cool button and crank down the thermostat...

Heatman101

AC's have a low freon switch that shuts off the system to protect the compressor in the advent that you have a freon leak have the system checked for a leak

That's what a heat pump does. The problem to me sounds like you don't have a big enough heater inside.

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