Carrier AC Not Cooling - How to Repair

Many customers ask why their air conditioner is not cooling the home like it used to. And of course, why they need a unit that is not doing its main duty. The answer to these questions could be from a lack of Freon, but it is also important to check other components of your air conditioner before making the conclusion that it is a lack of freon. Before you have a contractor come and recharge your Freon, you should make sure they perform routine maintenance to ensure they are covering all the bases. Replace the air filter. Clean evaporator and condenser coils. Dirty coils can cause problems very similar to an air conditioner with low refrigerant. Check the air handler, blower fan, and condenser fan. Check your refrigerant levels. Search for leaks. We do not recommend recharging the air conditioner system as it may lead to overcharging that is going to destroy your unit. However, if you have a strong wish to complete it yourself, follow the next guide. Identify the type of metering device. You need to know what type of metering device the system has as this may determine how the system will be charged. Before installing your gauges, vent the hoses and the manifold with virgin refrigerant (The same type as the system.) to avoid the introduction of air into the system. Blends like R410a or 404a must be added to a system as a liquid. Pure refrigerants like R22 can be added in liquid or vapor states. If adding liquid into the suction like, throttle it in slowly to avoid slugging the compressor or diluting and washing out the compressor oil. After the charge has been set, avoid installing the gauges as part of regular service. The system should be sealed. Keep it that way! Make sure nothing threatens your safety before doing any DIY!