Just a few primary rules for Air Conditioner troubleshooting. For each central residence air conditioner or window air conditioners, the very first thing to test is whether or not the unit is getting correct energy. If the unit makes use of 220 volt energy make certain that the right voltage is attending to the unit. Similar for 110 volt models. A voltage meter can be utilized to guarantee that the voltage is right.
For window air-con models the voltage will also be checked earlier than and after the thermostat. If voltage is being equipped to the thermostat however not from it then the thermostat in all probability wants changed. It is a pretty widespread drawback. One other place to test is the fan motor voltage. The fan on window air conditioners runs each the indoor blower and the condenser fan. If that motor fails than the compressor could run for a short while, however will overheat and shut off. Continued operation like this may end in compressor failure. This motor could be economically changed for bigger window air conditioners, however for smaller ones the price of substitute might be greater than a brand new unit.
Central Air Conditioners for the house are extra advanced and there are extra issues that may go incorrect. As with the window air conditioner the thermostat will also be an issue. The central air conditioner thermostat will solely have 24 volts going to it. So do not search for excessive voltage there. Some models the voltage might be coming from the outside unit and others the voltage might be equipped by the indoor air handler or furnace. Most residence central air-con might be equipped by the indoor air handler or the furnace. If the air conditioner is for cooling solely the unit will often have solely two wires going to the condenser unit. Just be sure you have 24 volts throughout these wires.
The subsequent factor to test would be the indoor blower. In case your thermostat is asking for cooling then the indoor blower ought to be working. If there is no such thing as a air shifting throughout the indoor cooling coil then you’ll quickly have a giant block of ice shaped on the coil. This could occur for a number of causes. The indoor blower will not be working, the air circulation is restricted and never permitting air to maneuver throughout the coil. A clogged air filter would additionally do that. Or the outside condenser unit has misplaced the cost of refrigerant.
Lastly and worst of all is when you might have an entire compressor failure. Usually when this occurs the compressor will “lock up” or not have the ability to flip when energy is equipped to it. Overheating or lack of lubrication are often the principle causes of compressor failure. Overheating could be attributable to the outside coil across the compressor getting clogged with grime, leaves, grass, or simply plain outdated grime. The outside coil ought to be washed out yearly with coil cleaner and water. This can assist stop compressor failure and assist hold the unit working at peak effectivity. Altering an air conditioner compressor is a job that requires specialised gear and must be finished by an expert with the right refrigeration license.
As you’ll be able to see there are some easy issues good handyman or home-owner can test. There are additionally some issues that require the specialised instruments and expertise of the skilled.