LG LWHD8008R Service Manual - Page 5

1.3 LOCATIONS OF CONTROLS Operation Off High High Fan Cool Low Low Fan Cool Off - Turns air conditioner off. High Fan - High speed fan operation without cooling. Low Fan - Low speed fan operation without cooling. High Cool - Cooling with high speed fan operation. Low Cool - Cooling with low speed fan operation. Thermostat 5 4 6 3 7 2 1 8 9 This automatically controls the temperature of the indoor air. Turn the knob so that arrow points to the larger marks for greater cooling. Point the arrow to the smaller marks for more moderate cooling. (i.e. the higher the number, the greater the cooling) CAUTION : After switching the air conditioner from Cool to Off or Fan, wait at least 3 minutes before switching it back to Cool. 1.4 SAFETY PRECAUTIONS 1. When servicing, set the ROTARY SWITCH to Off and unplug the power cord. 2. Observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 3. After servicing, make an insulation resistance test to prevent the customer from being exposed to shock hazards. 1.5 INSULATION RESISTANCE TEST 1. Unplug the power cord and connect a jumper between 2 pins (black and white). 2. The grounding conductor (green or green and yellow) is to be open. 3. Measure the resistance value with an ohm meter between the jumpered lead and each exposed metallic part on the equipment at all position [except Off] of the ROTARY SWITCH. 4. The value should be over 1 MΩ. -4-