Mar 27 2009
Waco Air Conditioning Malfunctions and how to fix them
Major room temperature swings
When room temperatures swing more than about 3 degrees between when the Waco air conditioner goes off and on again, it generally means that the heat pump isn’t cycling on often enough. See “Adjust Thermostat Heat Anticipator†under Thermostats.Â
Room temperature drops too low
When room temperature drops lower than the set temperature on the thermostat, it usually means that the thermostat is improperly calibrated or installed where it doesn’t sense a proper sampling of room air.
Air handler squeals
Squealing sounds from a forced-air heat pump generally occur when the belt that connects the motor to the fan slips. If the blower is making a grinding noise, shut off the unit and call a heat pump repair technician—the motor’s bearings are probably shot.
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