Defrost Heater - Hisense HRF266N6CSE Service Manual

Defrost Heater

Check the Defrost Heater
Rated Voltage: AC115V
Rated Power: 220W
Mainboard Wiring Connection
1. Check that the wiring connections are secure.
If connection is loose or broken, repair the
connection.
2. Enter forced defrost mode. See "Defrost Mode."
3. Use a multimeter to measure the voltage
between Pins No. 2 and No. 7 on the CN2
connector on the mainboard.
4. If the voltage does not equal the electric
supply power, the defrost heater is broken.
Replace the defrost heater.
Measure the Resistance of the Heaters
Use a multimeter to measure the resistance of the
heaters. If the value is not 60.1Ω±5%, the heater is
faulty. Replace the heater.
Remove and Replace the Defrost Heater-
Defrost Sensor-Evaporator Coil Sensor
IMPORTANT: Wear cut resistant gloves. Coil fins
are very sharp.
The defrost heater is an assembly comprised of
the heater, defrost sensor and coil sensor.
1. Remove the two screws from the evaporator at
the back of the cabinet.
2. On the old assembly, cut the coil temp sensor
wire at the retention tube.
a b
c
a
Retention tube
b
Coil temp sensor wire
c
Evaporator screws (2)
d
Evaporator
3. Swing evaporator toward you to gain access to
rear of evaporator.
4. Carefully remove assembly from evaporator.
5. Reverse procedure to reassemble.
6. Using a zip tie, attach the coil sensor to the
retention tube.
40
d