Gree HOME GMV [242/367] Radiator overheat protection

Gree HOME GMV [242/367] Radiator overheat protection
Dc Inverter VRF plus Water Heater Solution Service Manual SERVICING
2.12 Radiator overheat protection
E5 displayed on
hand controller
Monitor display
Radiator
overheat
protection
If the outdoor
unit is in
good
radiation?
If the air outlet and air
intake of the outdoor unit
is short circuited, it will
cause the radiating
effect to become poor.
If the
r
adiator
is dirty or
blocked?
If the radiator is dirty or
blocked, it will cause the
radiating effect to
become poor.
Record and feed
back
Mainboard nixietube
Display Hc
Yes
No
No
No
No
Yes
Yes
Yes
Yes
No
If the modules
are tightened?
I
f
the modules are not
tightened, excess
temperature could be
caused in the modules
even burnin
g
down.
If the module
is uniformly
coated?
The uneven coating of the silicate
gel could result in bad cooling of the
modules, or uneven temperature, o
r
modules burning down due to the
sensor failed to detect the excess
temperature at some part.
T
oo much roller coatings
of the cooling silicate gel
could affect the cooling
effectiveness and even
burn the modules.
Please check if the
sensor and its
resistor divider is in
normal condition o
r
mount the modules
again and tighten
them.
if the module
silicate gel
meets the
requirement

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