Gree GMV-S280W/A-X

GMV5 Home DC Inverter Multi VRF Units
272
IDU's coil is
more than
10°C higher
than the
intake
temperatur
e;
expansion
valve.
2.2.2The
valve body
is faulty.
Replace
the body
of the
electronic
expansion
valve.
3.The
system
pipeline is
blocked.
The
system's
exhaust
temperatur
e rises and
the low
pressure is
too low
(compared
with the
reference
value).
3.1The fluid
pipe is
blocked.
Touch the
pipe along
the
flowing
direction
of
refrigerant
to feel the
temperatu
re
difference.
The
difference
is large or
part of the
pipe is
frosting.
——
——
Replace
and solder
the pipe.
3.2The air
pipe is
blocked.
Replace
and solder
the pipe.
3.3The pipe
that
connects
the IDU is
blocked.
Touch the
pipe along
the
flowing
direction
of
refrigerant
to feel the
temperatu
re
difference.
The
difference
is large or
part of
the pipe is
frosting.
3.3.1The
block is
caused by
solder.
Cut off the
pipe to
see if it is
blocked.
Replace
and solder
the pipe.
3.3.2The
pipeline is
blocked by
impurities.
Replace
and solder
the pipe.