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Note:
The above circuit diagram is only for reference. Please refer to the wiring circuit inside the electric box for
the detailed content.
8 Troubleshooting
8.1 Error code for hot water converter
Display code
L4
L5
L6
L8
dF
Note:
when there's malfunction for the outdoor unit, the unit can generate hot water (start up the hot water
generation function when there's water inside the water tank).
8.2 Common malfunctions
Malfunction phenomenon
No water
No hot water or the water
temperature is not high
Hot water volume is not
stable
Freeze prevention
8.3 After-sales service
The guarantee period for the complete unit is 21 months (started from the purchased date on
the invoice). The unit can be repaired freely within the guarantee period. User can take the
guarantee and invoice to the appointed maintenance center. When the unit has been used for
three years, please contact local maintenance center for door-to-door service (maintenance
should be charged).
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
Hot water converter of GMV5 Home Installation and Operation Manual
Content
Wired controller power
supply error
Freeze prevention protection
Mode shock
Insufficient power supply
Malfunction of upper water
temperature sensor
Water is stopped or water
pressure is too low
Water pipe is blocked
Valve of water inlet pipe is
Water temperature is set
Wired controller is invalid
Heating time is too short
Tap water pressure is not
Water temperature is too
Display
code
Malfunction of entry temperature
d4
sensor
Malfunction of exit temperature
d6
sensor
Setting of capacity DIP switch is
dC
abnormal
Circuit board of wired controller is
dH
abnormal
Malfunction
d2
temperature sensor
Causes
not open
too low
Contact with local maintenance
stable
Energize the unit or keep the
low
heating status for 30min above
15
Content
of
lower
water
Troubleshooting
Check it.
Set it again
center
Heat it successively
check it