1-11. Precautions1-1 Precautions for the ServiceO Use the standard parts when replacing the electric parts.– Confirm the model name, rated voltage, rated current of the electric parts.O When repairing the equipment, connection of the harness parts must be firm and solid.– A loose connection may cause noise or other malfunction.O When assembling and disassembling the equipment while it is laid down, lay it on soft cloth.– Otherwise it may scratch the back of the exterior of the product.O Remove dust or dirt completely from the housing block, wiring block and service parts during repair.– This helps prevent the danger of fire caused by tracking or short circuit.O Fasten the valve caps of service valves and charging valves of outdoor unit as much as possible using adjustable wrenches.O Check the status of the components’ assembly after repair service.– The status must be the same as before the repair service.1-2 Precautions related to static electricity and PLO The PCB power supply block is susceptible to static electricity. Therefore, care must be taken during repair or measuringwhile the power is on.– Wear insulation gloves for PCB repair or measuring.O Check whether the installation location is at least two meters away from other electronic products such as TV, video, oraudio.– Otherwise, the video quality might be degraded or noise might be generated.O Do not let end users repair the products themselves.– Unauthorized disassembly might cause electric shock or fire.
