The thermostat can be used to determine if a contactor needs replacement or is damaged. Without a functioning thermostat, an AC unit will not function properly. The thermostat signals the compressor to start. When the thermostat signals it's time to start, the thermostat will close and shut down the AC unit. If the thermostat doesn't function properly, it can cause a serious oil leakage or electric shock.
The central home's air conditioner system's filter can be found in one location, such as the indoor handler located in the basement or attic. Depending upon the brand and type, the filter may either be horizontal or verticle. In some cases, you can find the filter in your blower cabinet while in others, it is mounted in your return air grill.
If you find that the evaporator coil has become frozen, shut off the power to it at the appropriate circuit breakers. This is essential to stop the unit from turning itself back on. Next, wait for ice to melt. This can take up to 24 hrs. You should contact an HVAC technician licensed to diagnose and repair any ice buildup on the coil.
It can be difficult to troubleshoot an AC unit. However, with the right knowledge, it is possible to do it yourself. While you should be cautious and have the electrical knowledge necessary to repair an AC unit, it is possible to save significant money by replacing the contactor. A residential unit contacts can run from $20 to $30. For those who are experienced mechanics, there are several DIY air conditioning repair projects that you can try.
After narrowing your search down to a handful companies, call them to request a quote. Be sure to ask for a detailed estimate. Also, inquire about the experience and credentials of the technician. You will need to make sure the technician is licensed to work at your home. A license signifies that the technician has had the appropriate training and experience in order to complete the work. You do not want anyone with no certifications working on central air conditioning systems.
It is highly recommended that you hire a licensed HVAC company when it comes to selecting one. You should only hire licensed contractors for many reasons. Most importantly, they will have the proper equipment and be able to provide warranty service and repairs. They should be able and capable of withstand temperature extremes. You can get a warranty if they are not. It is best to avoid paying upfront for services. Most reputable businesses require payment only after the work has been completed.
Take out the panel that holds your central home's air conditioner in order to inspect the filter. You'll find plastic clips, screws or pressure on the panel that holds it in place. It is easy to access the filter after removing the panel. The filter might be damaged if it is stained with water. If the filter is stale or smells musty, you may have moisture problems. Contact a technician if this happens.