GREE GMV5 HR HEAT RECOVERY UNITS
174
Fault
code
Fault
Possible reasons
Solution
Primary reason
Secondary reason
Tertiary reason
Description
Confirmation
method
Description
Confirmation
method
Description
Confirmation
method
3. The ambient
temperature is
too low.
——
3.1 The
outdoor
ambient
temperatur
e is lower
than
-25°C
(
-13
°
F)
in the
heating
mode.
Measure the
outdoor
ambient
temperature.
——
——
It is a
normal
phenomeno
n caused by
the
protection
function.
4. The pressure
sensor is faulty.
——
4.1 The low
pressure
sensor is
faulty.
Stop the whole
system. Test
the system's
balance
pressure 20
minutes later
and convert
the pressure
into the
corresponding
saturation
temperature.
Compare it
with the
outdoor
ambient
temperature. If
the difference
is larger than
5°C
(
9
°
F)
, it is
exceptional.
——
——
Replace the
high
pressure
sensor.
Summary of Contents for GC201808-III
Page 87: ...GREE GMV5 HR HEAT RECOVERY UNITS 83 1 External Connection for Individual Units ...
Page 92: ...GREE GMV5 HR HEAT RECOVERY UNITS 88 ...
Page 227: ...GREE GMV5 HR HEAT RECOVERY UNITS 223 Troubleshooting ...
Page 286: ...GREE GMV5 HR HEAT RECOVERY UNITS 282 Troubleshooting ...
Page 362: ...JF00302879 ...