KWAD Green Energy ECO 10, User And Service Manual

Page: 18 / 58

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R410A pressure and temperature mapping table
7. Malfunction and Troubleshooting
7.1 Error code on controller
Malfunction Error
code
Reason Solution
Low ambient
temperature
protection
PP0 Ambient temperature
is too low
Inlet water
temperature sensor
failure
PP1 The sensor in open or
short circuit
Check or change
the sensor
Outlet water
temperature sensor
failure
PP2 The sensor in open or
short circuit
Check or change
the sensor
Heating condenser
sensor failure
PP3 The sensor in open or
short circuit
Check or change
the sensor
Gas return sensor
failure
PP4 The sensor in open or
short circuit
Check or change
the sensor
Ambient
temperature sensor
failure
PP5 The sensor in open or
short circuit
Check or change
the sensor
Temperature
difference too
much protection
water inlet and
outlet
PP6 Water flow volume is
not enough
Check the water
flow volume or
water jammed
or not.
Unit
Condition
Power Off Running
Ambient
(
℃
)
-5~5 5~15
15~2
5
25~3
5
/ / / / /
Water
temp (
℃
)
/ / / /
10~
15
15~
20
20~
25
25~
30
30~
35
Pressure
gauge
(kg/cm2)
6.8~
9.3
9.3~
12.5
12.5
~16.
4
16.4
~21
13~
18
15~
19
16~
23
19~
28
21~
35