Midea MDD160-V052/F01-US1305

Service manual for Dryer Machine Midea America Company
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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.
The power supply will be off if the temperature is
too high. Then we need to press this red button
on the thermostat to restart the dryer.
● 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
● Belt Cut-off Switch (Electronic & GAS)
- Lever open: Resistance value < 1Ω
- Lever push: Resistance value: ∞Ω
● Centrifugal Switch (Motor) (Electronic &
GAS)
Contacts
Function
1M
2M
3M
5M
6M
Start
●
●
Run
●
●
●
●
●=Contact closed
THERMOSTAT 1
THERMISTOR
70/50℃, 25A
HI-limit
175℃, 25A
Thermal cut-off
100/80℃, 25A
HI-limit
240V/4800W
THERMOSTAT 3
THERMOSTAT 2
HEATER
BELT CUT-OFF SWITCH
250V, 16A
2.88Ω between
Pin# 3 and 4
3.5Ω between
Pin# 4 and 5
250V 16A
DOOR SWITCH