Gree DC Inverter Multi VRF

DC INVERTER MULTI VRF MAINTENANCE
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 displa
y
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 it
cause by obstruction,
and strengthen
obstruction anti
measures.
If it happens during the
compressor frequency
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 it
could cause the machine
damaged or breaking out
of fire.
Change the mainboard.
No
Yes
No
Yes
Yes
No
No
Yes