14
When checking the Component, be sure to turn the power off, and do voltage discharge sufficiently.
COMPONENT TESTING INFORMATION
5
CAUTION
Component Test Procedure Check result Remark
1. Thermal cut off
• Check Top Marking:
N130
Measure resistance of terminal
to terminal
Open at 266
±
12°F
(130
±
7°C)
Auto reset 31°F (35°C)
Same shape as Outlet Thermostat.
If thermal fuse is open must
be replaced
Resistance value
≒
∞
Continuity (250°F
↓
) < 1Ω
• Heater case-
Safety
• Electric type
2. Hi limit Thermostat
(Auto reset)
Measure resistance of terminal
to terminal
Open at 257
±
9°F
(125
±
5°C)
Close at 221
±
9°F
(105
±
5°C)
Resistance value
≒
∞
Resistance value < 5Ω
• Heater case -
Hi limit
• Electric type
3. Outlet Thermostat
( Auto reset)
• Check Top Marking:
N85
Measure resistance of terminal
to terminal
Open at 185
±
9°F
(85
±
5°C)
Close at 149
±
9°F
(65
±
5°C)
Same shape as Thermal cut off.
Resistance value
≒
∞
Resistance value < 5Ω
• Blow housing -
Safety
• Electric type
4. Lamp holder Measure resistance of terminal
to terminal
Resistance value:
80Ω ~ 100Ω
6. Idler switch Measure resistance of the
following terminal:
“COM - NC”
1. lever open
Resistance value < 1Ω
2. Lever push (close)
Resistance value
≒
∞
5. Door switch Measure resistance of the
following terminal
1) Door switch knob: open
Terminal: “COM” - “NC” (1-3)
Terminal: “COM” - “NO” (1-2)
2) Door switch push: push
Terminal: “COM” - “NC” (1-3)
Terminal: “COM” - “NO” (1-2)
Resistance value < 1Ω
Resistance value
≒
∞
Resistance value
≒
∞
Resistance value < 1Ω
The state that
Knob is
pressed is
opposite to
Open
condition.
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