A bad news scenario of your air conditioner troubleshooting starts with a sudden system failure. The A/C works fine, then you try to turn on the A/C again, Google Nest starts showing "no power detected for Rh wire", thus the system can't turn on. It is recommended to check if the thermostat needs cleaning. A coating of debris on the mechanical and electrical components can affect a thermostat’s normal operation, so clean them carefully with canned compressed air or a soft brush. To clean the contacts, use a piece of paper and move it between the contacts in order to get the grime off. Older thermostats have a lot more problems than newer ones. Like all parts of your HVAC system, thermostats are not going to last forever. The older a thermostat is the higher a chance it will be broken. If you suspect the defective thermostat, check it for continuity with a multimeter. If the thermostat does not have continuity while the air conditioner is set to cooling, replace the thermostat. As any other continuously working part it can be faulty or timeworn. Before calling a professional helper check if the air condenser hasn’t been blocked or dirty. Clean around and remove any debris or weeds that are blocking air circulation. That sounds simple but often gives positive results. If your air conditioner is still not cooling air, you may have a problem with your compressor or refrigerant. Such malfunctioning requires professional diagnostics and superior technical skills in troubleshooting HVAC systems. Give us a call for more information!
November 26, 2023
AC is leaking from the coil – HVAC Troubleshooting in San Diego
Have you encountered a leaking air conditioner? This causes not the most pleasant feelings and deprives you of comfort. Before solving this problem, you should determine what exactly became the source of the air conditioner flow.
