Gree GWH18MC-K3DNA2G Service Manual page 67

4. Air Conditioner is Leaking
Possible causes
Drain pipe is blocked
Drain pipe is broken
Wrapping is not tight
5. Abnormal Sound and Vibration
Possible causes
When turn on or turn off the unit,
the panel and other parts will
expand and there's abnormal
sound
When turn on or turn off the unit,
there's abnormal sound due
to flow of refrigerant inside air
conditioner
Foreign objects inside the indoor
unit or there're parts touching
together inside the indoor unit
Foreign objects inside the outdoor
unit or there're parts touching
together inside the outdoor unit
Short circuit inside the magnetic
coil
Abnormal shake of compressor
Abnormal sound inside the
compressor
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Discriminating method (air conditioner status)
Water leaking from indoor unit
Water leaking from drain pipe
Water leaking from the pipe connection place of
indoor unit
Discriminating method (air conditioner status)
There's the sound of "PAPA"
Water-running sound can be heard
There's abnormal sound fro indoor unit
There's abnormal sound fro outdoor unit
During heating, the way valve has abnormal
electromagnetic sound
Outdoor unit gives out abnormal sound
Abnormal sound inside the compressor
Troubleshooting
Eliminate the foreign objects inside the drain
pipe
Replace drain pipe
Wrap it again and bundle it tightly
Troubleshooting
Normal phenomenon. Abnormal sound will
disappear after a few minutes.
Normal phenomenon. Abnormal sound will
disappear after a few minutes.
Remove foreign objects. Adjust all parts'
position of indoor unit, tighten screws and stick
damping plaster between connected parts
Remove foreign objects. Adjust all parts'
position of outdoor unit, tighten screws and
stick damping plaster between connected parts
Replace magnetic coil
Adjust the support foot mat of compressor,
tighten the bolts
If add too much refrigerant during maintenance,
please reduce refrigerant properly. Replace
compressor for other circumstances.
Service Manual
Installation and Maintenance