LG DLE2512W Service Manual - Page 15
Component Testing Information - thermostat
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5 COMPONENT TESTING INFORMATION ! CAUTION When checking the Component, be sure to turn the power off, and do voltage discharge sufficiently. Component 1. Thermal cut off • Check Top Marking: N130 2. Hi limit Thermostat (Auto reset) 3. Outlet Thermostat ( Auto reset) • Check Top Marking: N85 4. Lamp holder Test Procedure Check result Remark Measure resistance of terminal If thermal fuse is open must • Heater case- to terminal be replaced Safety Open at 266 ± 12°F (130 ± 7°C) Resistance value ∞ • Electric type Auto reset 31°F (35°C) Continuity (250°F ) < 1Ω Same shape as Outlet Thermostat. 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 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 Measure resistance of terminal Resistance value: to terminal 80Ω ~ 100Ω • Heater case Hi limit • Electric type • Blow housing Safety • Electric type 5. Door switch 6. Idler 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. Measure resistance of the following terminal: "COM - NC" 1. lever open Resistance value < 1Ω 2. Lever push (close) Resistance value ∞ 14