Replacing The Inverter Pcb Heat Sink - LG Multi V5 Service Manual

Replacing the Inverter PCB Heat Sink

If the inverter PCB is replaced at any time, the heat sink must be replaced.
unit will overheat and damage the PCB and outdoor unit.
1. Remove inverter PCB by detaching its screws using a JIS screwdriver.
Only use a JIS screwdriver. A standard Phillips screwdriver will damage / strip the inverter PCB screw heads.
2. Wipe off any existing heat sink paste material from the inverter PCB heat sink plate, as well as from the outdoor unit heat sink plate.
Gently scrape off as much heat sink paste material as possible, taking care not to damage the back of the inverter PCB or the outdoor unit
heat sink plate.
3. Evenly apply a coating of silicone-based electronic heat sink paste to the inverter PCB heat plate. Verify all applicable areas of the PCB
heat plate are completely covered.
4. Reinstall the inverter PCB by reattaching its screws with a JIS screwdriver. Tighten the screws, but
REPLACING THE INVERTER
Do not let foreign matter settle onto the heat sink paste.
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
PCB HEAT SINK
do not overtighten.
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