Service Manual

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Names within angle brackets < > are part names listed in the parts catalog.

Model LGH-F940RVX2-E, LGH-F1200RVX2-E

Models LGH-F300RVX2-E, LGH-F380RVX2-E, LGH-F470RVX2-E, LGH-F600RVX2-E

8. Overhauling procedures

Work precautions

• When touching the electric components such as circuit boards and fan motors, do not touch the components

for more than 5 minutes after power-off, and then start working. If LED4 on the circuit board is lit, do not touch

the electric components.

• Before replacing parts or components, follow the instructions described in the troubleshooting.

• When servicing, always keep proper footing.

• When servicing, be sure to turn off the power supply isolator. Pay sufficient attention to avoid electric shock or

injury.

• Be sure to connect the power supply wires correctly.

• Avoid application of abnormal voltage.

• Pay attention not to drop the parts or components.

• When the tightening torque for assembling is specified, be sure to tighten to the specified tightening torque.

• After connecting the lead wires, make sure that they are securely connected.

• After completing repairs, check that the product operates properly.

Always wear a pair of gloves when servicing.

Lossnay core holder

Thermistor Air filter

Lossnay core

Maintenance cover

Control box

Air supply fan

Damper plate

Air exhaust fan

Fix piece

Control box

Air filter

Lossnay core

Air supply fan

Maintenance cover

Fix piece

Damper plateAir exhaust fan

Thermistor

Lossnay core holder

Upper unit

Lower unit