43
DALIS PRO
DOMESTIC HOT WATER HEAT PUMP
EN
Protection/
Malfunction
Error code
LED
indicator
Possible reasons
Corrective actions
Low pressure
protection (LP
Switch)
E2
7
Flashes
1) Too low air inlet temp
2) Electronic expansion
valve assembly blocked
3) Too less refrigerant
4) Switch damaged
5) Fan assembly cannot
work
6) PCB board failure
1) Check the air inlet temp is
over the working limited
2) Replace electronic
expansion valve assembly
3) Charge some refrigerant
4) Replace a new switch
5) Check if fan working
when compressor working. If
not, some problems with fan
assembly
6) Change PCB board
Over heat
protection
(HTP Switch)
E3
8
Flashes
1) Too high tank water
temp
2) Switch damaged
3) PCB board failure
1) If the tank water temp is
over 85ºC, switch will
open and unit will stop for
protection. After water comes
to normal temp.
2) Replace a new switch
3) Change PCB board
Solar thermal
collector high
temp protection
E4
11
Flashes
1) Solar water circuit
water flow very little
or without water flow
2) Related connecting
wires off
3) Water pump failure
4) PCB board failure
1) Solar water circuit fluid
infusion and exhaust
2) Related connecting wires
being reconnected
3) Change water pump
4) Change PCB board
Water flow
failure
E5
9
Flashes
1) Solar water circuit
water flow very little or
without water flow
2) Related connecting
wires off
3) Water pump failure
4) Water flow switch
failure
5) PCB board failure
1) Solar water circuit fluid
infusion and exhaust
2) Related connecting wires
being reconnected
3) Change water pump
4) Change water flow
switch
5) Change PCB board
Defrost
Defrosting
indicate
Always
flashing
Communication
failure
E8
Bright
Summary of Contents for Dalis Pro 200DHW5
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