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Abnormal
sound
and vibration
Water leakage
In case of the following protection or failures, the indoor unit shall display corresponding codes, which
are explained as follows:
Fan of indoor unit touches other
positions
Foreign articles inside the indoor unit
Vibration of compressor is violent
Pipes of outdoor unit bump together
Metal plates bump together inside the
unit
Indoor fan bumps cabinet
Abnormal
sound
compressor
Abnormal electromagnetic noise from
4-way valve when in heating operation
Block or breakage of drainage pipe
The refrigerant pipe joint is not
wrapped firmly
Code
E1
E2
E3
E4
E5
from
inside
Explanation
Compressor High-pressure Protection
Indoor Antifreeze Protection
Compressor Low-pressure Protection
Exhaust Pipe High-temp. Protection
Low-voltage Protection
－48－
Adjust fan position
Remove foreign articles
Adjust
support
foot
compressor, tighten loose bolts
Separate bumping pipes
1. Tighten connection screws
2. Attach vibration damping gum
between metal plates
Adjust fan position
Replace Compressor
Internal short circuit of solenoid
valve, replace solenoid valve
Replace drainage pipe
Wrap and bind it again firmly
mat
of
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