SOURCE: fan not blowing
Even when the power is off at the unit outside the thermostat will supply power to the contactor of the outside unit. This may give a hum or buzz as you stated. If when the power is on to the outside unit the fan tries to start but only hums the motor may be bad. Does the compressor start and run?
SOURCE: freez up at the tube going to the fan blower unit
it is either low on freon or the airflow is blocked. check your filter first. then see if the coil is dirty. saying it needs a new coil because it is freezing is an expensive guess unless he did a freon leak test.
SOURCE: I have 2 Weather King units model numbers
Hello Larry Both units are 10 SEER.Standard rating ,not efficent units.JA25 is a 2 ton unit,JA60 is a 5 ton unit.Thats 24,000 BTU & 60,000 BTU.I hope that helps.
SOURCE: weather king model 10AJA4201
Unit is over heating and setting the internal limit switch. Capacitor an/or outdoor fan could be failing.
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