York YEFE BZTM-MOW1 Series Service Manual page 90

1.Remote Maintenance
Possible causes of trouble
Unit will not start
Operation is erratic, unpredictable, or unit is unresponsive
The tempreture on the playboard cannot be setted
Unit is on but the wind is not cold(hot)
Unit runs, but shortly stops
The unit startup and stop frequently
Unit runs continuously but insufficient cooling(heating)
Cool can not change to heat
Unit is noisy
The unit emits a bad odor
Test method / remedy
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Electrical Circuit
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Refrigerant Circuit
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