LG DLG2526 Service Manual - Page 30

Test 7 GAS Valve test - Gas Type Caution When measuring power, be sure to wear insulated gloves, to avoid electric shock. Trouble Symptom While operating, Heating will not work. Drying time takes longer. Measurement Condition With dryer power on Valve 1 Igniter Valve 2 Power On & Start (Normal Cycle) NO When measuring Valve 1 voltage, More than DC 90V? YES NO • Check thermostat Hi limit Safety Igniter operates? (after 1 min, Igniter becomes reddish) YES NO • Check Igniter & Frame detect When measuring Valve 2 voltage, Value is more than DC 90V? (10 sec after Igniter off) YES NO • Check Gas connection or Gas supply When measuring terminal resistance on Valve 1 and Valve 2, Valves are more than1.5 ~ 2.5kΩ? YES (Measure after Off ) NO • Change Valve If "Valve 1 " and "Valve 2" are under DC 10V, Valves are Off? NO YES • Change Valve • Harness check • Controller change 29