Good communication with the homeowner will reduce callbacks, which can create customer dissatisfaction and jeopardize future business with them. Inspect electrical connections. Check for corroded electrical connections, including disconnects and breakers. Ensure tightness of the thermisters and sensors to confirm the parts are securely fastened to their lines. If the indoor thermostat uses mercury bulbs, calibrate by making sure the thermostat is level and securely fastened to the wall.
Poor conductivity can cause delayed defrost or premature defrost termination.
This can lead to incomplete defrost and reduced heating capacity. Cooling operations can also be negatively impacted. Thoroughly clean the indoor coil. Clean or replace the indoor filter to maintain proper airflow and prevent dirt from reaching the coil. Encourage homeowners to do this monthly.