LG ThermaV Owner's Manual page 68

Maintenance and Service
Troubleshooting Tips! Save time and money!
Check the following points before requesting repairs or service.... If the malfunction persist, please contact
Case
AWHP does not operate.
The room has a peculiar
odor.
AWHP does not operate for
about 3 minutes when restart.
Does not cool or heat
effectively.
The unit operation is noisy.
Steam is raised in outdoor
unit.
Control panel display is faint,
or no display at all.
68 Air-to-Water Heat Pump Owner's Manual
Explanation
• Have you made a mistake in timer
operation?
• Has the fuse blown or has the circuit
breaker been tripped?
• Check that this is not a damp smell exuded
by the walls, carpet, furniture or cloth items
in the room.
• This is the protector of the mechanism.
• Wait about three minutes and operation will
begin.
• The room may have been very hot when
the AWHP was first turned on. Allow time
for it to cool down.
• Has the setting temperature been set
incorrectly?
• Refrigerant flow sound
- While the system is being started or
stopping, sound from the refrigerant
flow may be heard.
• Sound for the indoor unit heat exchanger
- During the cooling operation, a sound
may be heard from the indoor unit heat
exchanger due to water freezing or
melting.
• Water noise
- During starting or stopping of the unit,
noise can appear in water piping
• During defrost
- Noise can appear in unit due to
defrosting of water.
See page
49
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40, 41, 42
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