Service manual for Dryer Machine
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COMPONENT TESTING
PROCEDURES
● Thermostat 1 resistance < 1Ω (Electronic &
GAS)
- If resistance is infinity, replace Thermostat 1.
● Thermistor resistance 40KΩ @30℃
50KΩ @25℃
99KΩ @10℃
- If resistance is infinity, replace Thermistor.
● Thermostat 3 resistance < 1Ω (Electronic
models only)
- If resistance is infinity, replace Thermostat 3.
● Thermostat 2 resistance < 1Ω
- If resistance is infinity, replace Thermostat 2.
● Heater resistance 20Ω
- If resistance is infinity, replace Heater.
● Measure resistance of the following terminal
(Electronic & GAS)
(1) Door switch: open
Terminal: “COM” – “NO” (1-2): ∞Ω
● Measure resistance of the following terminal
(2) Door switch push: On
Terminal: “COM” – “NO” (1-2): < 1Ω
● Thermal fuse resistance < 1Ω (Electronic &
GAS)
- If resistance is infinity, replace Thermal fuse.
● Belt Cut-off Switch (Electronic & GAS)
- Lever open: Resistance value < 1Ω
- Lever push: Resistance value: ∞Ω
● Centrifugal Switch (Motor) (Electronic &
GAS)
Contacts
●=Contact closed
175℃, 25A
Thermal cut-off
2.88Ω between
Pin# 3 and 4
3.5Ω between
Pin# 4 and 5