The Units Discontinue After The Operation Started - LG AB-H1208VA0 Service Manual

Troubleshooting Guide

2. The Units discontinue after the operation started

WHAT TROUBLED
Outdoor coil
In-condensable gas
blended.
High pressure switch
(Option part)
Outdoor Fan
Note: Use an appropriate measuring instrument for readjustment.
*1: High-pressure switch moves.
COMPLAINTS
Coil is dirty *1
Air intruded into the
refrigerant pipe line *1
Improper adjustment
Reverse rotation of fan
Obstacle
Air short circuit *1
HOW TO CHECK
Checking
In the event that
difference between the
saturating temperature
corresponding to high
pressure and the
temperature of air
discharged from the
outdoor coil is more than
15°C, incondensable gas
may be blended.
Check it with a pressure
gauge.
Confirm the wind blowing
out upward.
Check it with eyes.
- 16 -
REMEDY
Wash it by means of
something like chemical
washing.
Extract air by vacuum
pump, then replenish
(charge) the refrigerant.
Read just it to normal
operating pressure.
(Note)
Don't alternate the
specified adjusting
pressure. If the adjusted
pressure exceed the
specified range, it will
cause a great accident.
If reversed, connect
interchanged wires to
each terminal.
Power wirings.