KitchenAid KBFA20ER, Техническое образование

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6-8
Symptom Possible Causes Corrective Action
Defrost thermostat faulty Check defrost thermostat. Replace if
failed.
Evaporator fan faulty Check fan motor. Replace if failed.
Defrost heater remains open Check defrost heater continuity.
Replace if failed.
Defrost control faulty Check control and replace if failed.
Open wire or connector Check wiring and connections.
Repair as necessary.
Frost or ice on evaporator
Refrigerant shortage or restriction Check for leak or restriction. Repair,
evacuate and recharge system.
Loose wire or thermostat
connections
Check wiring and connections.
Repair as necessary.
Supply voltage out of specification Check input voltage. Correct any
supply problems.
Overload protector open Check overload protector for
continuity. If open, replace overload.
NOTE: Ensure
overload/compressor are below
trip temperature before testing.
Faulty compressor motor capacitor
(some compressors do not require
motor capacitor)
Check capacitor for open/short.
Replace if necessary.
NOTE: Discharge capacitor
before testing.
Faulty fan motor Check fan motor. Replace if failed.
Restricted air flow Check condenser and grille for dirt.
Clean.
Unit starts and stops frequently
(cycles on and off)
Refrigerant shortage or restriction Check for leak or restriction. Repair,
evacuate and recharge system.