A few basic principles for Air Conditioner troubleshooting. For both the central home air conditioners and the window air conditioners, the very first thing that you will need to check is whether the unit is getting just enough power. If the unit is using a power of 220 volts, you will have to make sure that the proper voltage is getting into the unit. This is also the same for the 110 volt units. A voltage meter can be used to assure that the voltage is correct.
For those air conditioning units, the voltage also need to be checked before and after the thermostat. If the voltage is supplied to the thermostat, but not from it, then the thermostat probably needs some replacement. This may be a very common problem. One other important thing that you need to check is the fan motor voltage. The fan on window air conditioners runs both the indoor blower and the condenser fan. If that motor fails than the compressor may run for a short time, but will overheat and shut off. Continued operation, just like this, will only result in a failure in the compressor. This motor may also be replaced economically for some larger window air conditioners, but for the smaller nes, the cost of replacement will be more than a brand new unit.
The central air conditioners for the home are way more complex, and there are also more things that might just go wrong. As with those window air conditioners, the thermostat may only become a problem. The central air conditioner thermostat will only be having a 24 volts power going to it. So, you just do not try looking for a high voltage there. Some units the voltage will be coming from the outdoor unit and others the voltage will be supplied by the indoor air handler or furnace. Most home central air conditioning may be supplied by the indoor air handler or just the furnnace. If the air conditioner is designed for cooling, then only the unit will usually have the two wires to the condenser unit. Make sure that you have 24 volts across those wires.
As you may have seen, there are some simple things that agood handyman or a creative homeowner may try checking out. There are also some other things that may require the specialized tools and experience of a professional.
For those air conditioning units, the voltage also need to be checked before and after the thermostat. If the voltage is supplied to the thermostat, but not from it, then the thermostat probably needs some replacement. This may be a very common problem. One other important thing that you need to check is the fan motor voltage. The fan on window air conditioners runs both the indoor blower and the condenser fan. If that motor fails than the compressor may run for a short time, but will overheat and shut off. Continued operation, just like this, will only result in a failure in the compressor. This motor may also be replaced economically for some larger window air conditioners, but for the smaller nes, the cost of replacement will be more than a brand new unit.
The central air conditioners for the home are way more complex, and there are also more things that might just go wrong. As with those window air conditioners, the thermostat may only become a problem. The central air conditioner thermostat will only be having a 24 volts power going to it. So, you just do not try looking for a high voltage there. Some units the voltage will be coming from the outdoor unit and others the voltage will be supplied by the indoor air handler or furnace. Most home central air conditioning may be supplied by the indoor air handler or just the furnnace. If the air conditioner is designed for cooling, then only the unit will usually have the two wires to the condenser unit. Make sure that you have 24 volts across those wires.
As you may have seen, there are some simple things that agood handyman or a creative homeowner may try checking out. There are also some other things that may require the specialized tools and experience of a professional.
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