Are you wondering if your air conditioning unit is working as well as it ought to be? Fortunately, a malfunctioning air conditioner doesn't always mean a hefty repair bill. Before you contact your service technician, here are some possible problems you might be facing, as well as their solutions:
Air conditioning unit doesn't blow air: Although this may be a sign of a broken motor, it's more often a worn out belt. You can confirm this by removing the access panel to see if the motor is still turning and trying to move the belt. If the motor turns but the belt does not, replace the belt according to the instructions in your owner's manual.
If you are unable to find the belt in your air conditioning unit, the manufacturer may have intended for it to only be serviced by licensed professionals.
Roof leaks when air conditioning is on: If you have a drip in your ceiling that seems slightly random or that only appears during certain parts of the day, your rooftop air conditioner may be to blame.
When your air conditioner runs, condensation will collect on the coils and other cold parts. Normally, this water would then be directed down a tube and either into your gutters or onto the ground below. However, if this piping becomes clogged with something like leaf debris or a small spider web, the water will have nowhere to go and it will build up and eventually drip down onto your roof.
If your unit sits directly on your roof, this means that the water could back up under your shingles or work its way under the flashing around your air conditioning vent. As a result, water will get inside and make it appear as though you have a leaky roof. Depending on the nature of the clog, you may simply be able to clean the clog out of one end. Otherwise, you will need to replace the tubing so that the condensation is free to flow to the ground once again.
Air conditioner turns on and then immediately off: When your air conditioner turns on and off rapidly or otherwise behaves erratically, this may indicate a faulty sensor in the unit itself.
While the thermostat might be telling your air conditioner that it's too warm inside, sensors within the air conditioning unit may be saying that it's too cold or that the unit has run for too long already. If you're able to locate the sensor, sometimes this is a matter of re-positioning the sensor slightly so that it can get the correct readings.
When repositioning the sensor doesn't seem to work, the sensor itself may be faulty and need to be replaced by a qualified professional.