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Malfunctioning of the unit and error codes
When an error occurs or the protection mode is set automatically, the circuit board and the wired
controller will both display the error message.
Description
Error
Host operation/fault indicator
Standby
Dark
Normal running
Bright
Lower tank water temp
sensor failure
P1
☆
● (1 flashes 1 dark)
Upper tank water temp
sensor failure
P2
☆☆
● (2 flashes 1 dark)
Evaporator coil temp
sensor failure
P3
☆☆☆
● (3 flashes 1 dark)
Suction temp sensor
failure
P4
☆☆☆☆
● (4 flashes 1 dark)
Ambient temp sensor
failure
P5
☆☆☆☆☆
● (5 flashed 1dark)
Return water/solar
water tank temp sensor
failure
P6
Bright
Emergency switch
failure
P7
No icon display, only error code displayed
Water temp too high
protection
P8
Bright
High pressure
protection (HP switch)
E1
☆☆☆☆☆☆
● (6 flashes 1 dark)
Low pressure
protection (LP switch)
E2
☆☆☆☆☆☆☆
● (7 flashes 1 dark)
Overheat protection
(HTP switch)
E3
☆☆☆☆☆☆☆☆
● (8 flashes 1 dark)
Water flow failure
E5
☆☆☆☆☆☆☆☆☆
● (9 flashes 1 dark)
Communication failure
E8
Bright
Defrosting
☆☆☆☆☆☆☆☆
…… (Long flash)
Electrical anode failure
E6
☆☆☆☆☆☆☆☆☆☆☆☆
●
(
12 flashes 1 dark
)
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