Samsung DV431AEP/XEU manual Component Testing Procedures, Centrifugal Switch Motor

TROUBLE SHOOTING

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power.

COMPONENT TESTING PROCEDURES

Component Electrical Testing (with ohmmeter) 		Belt Cut-off S/W
	Thermistor resistance 10K Ω @ 25°C 77°F	- Lever open: Resistance value < 1Ω
	Thermostat 1 resistance < 1Ω	- Lever push: Resistance value : ∞ Ω

	Thermostat 3 resistance < 1Ω			Lamp resistance 80~100 Ω (Violet & gray)
	- If resistance is infinity, replace thermostat	3.
	Thermostat 2 resistance < 1Ω
	- If resistance is infinity, replace thermostat	2.

 Heater resistance 10 Ω

- If resistance is infinity, replace Heater.

Thermostat	3	Thermostat 2	Heater
160 °C, 25A		127/99 °C, 25A	240V/5300W
thermal cut-off		Hi-limit

Measure resistance of the following terminal

1)Door switch : open

Terminal : “COM” - “NC” (1-3) < 1Ω

Terminal : “COM” - “NO” (1-2) : ∞ Ω

2)Door switch push: On

Terminal : “COM” - “NC” (1-3) : ∞ Ω

Terminal : “COM” - “NO” (1-2) < 1Ω

Motor (Electronic & GAS)

Contacts

Function 1M 2M 3M 5M 6M

Start

Run

= Contact closed

Centrifugal Switch (Motor)

2.88Ω between Pin# 3 and 4

3.5Ω between Pin# 4 and 5

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2012-04-27 �� 10:22:52