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TM
‐
12
‐
011
Troubleshooting
Manual
6
“E5” Low refrigerant charge / Gas leak
Wired
Controller
Display
E5
LED
indications
Error
Generation
The
error
is
generated
when
indoor
coil
sensor
temperature
is
>
25
˚
C
in
cooling
or
<
20
˚
C
in
heating
after
compressor
running
for
30minutes.
Supposed
causes
The
possible
causes
are:
Refrigerant
leaking
Indoor
coil
sensor
faulty
Troubleshooting