Gree GMV-S280W/A-X

GMV5 Home DC Inverter Multi VRF Units
274
board.
7.The
ambient
temperatu
re
exceeds
the scope
of
temperatu
re
required
for safe
operation.
50The
outdoor
ambient
temperatur
e exceeds
50C.
Measure
the
ambient
temperatu
re.
It is a
normal
phenomen
on caused
by the
protection
function.
E2
Low
exhaust
temperatu
re
protection
1.The
ODU's
electronic
expansio
n valve is
not
working
properly.
When the
system is
working in
the heating
mode and
the ODU's
electronic
expansion
valve is
opened to
100PLS,
the intake
temperatur
e of the
correspondi
ng liquid-air
separator is
more than
1°C lower
than the
low-pressur
e saturation
temperatur
e and the
difference
between
the
compressor
's exhaust
temperatur
e or cover
temperatur
1.2The
controlling
heating
electronic
expansion
of the main
board or
the
electronic
expansion
valve of the
subcooler
is faulty.
Reset the
ODU.
Listen to
the sound
and touch
the tube to
see if the
electronic
expansion
valve is
reset. If it
is set, it is
normal.
Otherwise
, it is
faulty.
1.2.1The
control
wire of the
electronic
expansion
valve is
not
connected
to the main
board.
Manual
check
Connect
the
electronic
expansion
valve's
control
wire to the
main
board.
1.2.2The
control
wire that
connects
the
electronic
expansion
valve to
the main
board is
broken.
Manual
check
Repair or
replace
the control
wire of the
electronic
expansion
valve.
1.3The
body of the
electronic
expansion
valve is not
working
properly.
Other
reasons
1.3.1Affect
ed by
impurities
in the
system
Clean the
system
and clear
the
impurities.
Replace
the body
of the
electronic
expansion
valve.