Gree HOME GMV [243/367] Overvoltage protection of dc voltage

Gree HOME GMV [243/367] Overvoltage protection of dc voltage
Dc Inverter VRF plus Water Heater Solution Service Manual SERVICING
2.13 Overvoltage protection of DC voltage
E5 displayed
on hand
controller
If the input powe
r
voltage is within
185V-264V?
Record and feed
back
Monitor display
Mainboard nixietube
Display Hc
Overvoltage
protection of
DC voltage
It is caused by the speed
reduction of the
compressor. Please
check if the compresso
r
is in normal condition i
f
this has been detected.
Please check the
obstruction source if i
t
cause by obstruction,
and strengthen
obstruction anti
measures.
If it happens during the
compressor frequenc
y
reduction?
How many times does
it happen within 1
hour?
If it happens during the
compressor operating?
Please cut off the powe
r
immediately once the
network voltage is
excess high, otherwise i
t
could cause the machine
damaged or breaking ou
t
of fire.
Change the mainboard.
No
Yes
No
Yes
Yes
No
No
Yes

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