Other Malfunctions And Solutions (No Display On Wire Controller) - Wellness NE100 User And Service Manual

5.5. Other Malfunctions and Solutions (No display on wire controller)

Malfunctions
Wire controller shows
no display
Wire controller
displays the actual time
Heat pump is
not running
Wire controller displays
the actual water
temperature
Water
temperature is
Wire controller displays
cooling when
actual water temperature
heat pump runs
and no error code displays
under heating
mode
12 September 2023/ DH
Observation
No power supply
Heat pump under standby
status
1. Water temperature is
reaching set value, heat
pump
under constant temperature
status
2. Heat pump just starts to
run
3. Under defrosting
1. Chose the wrong mode
2. Figures show defects
3. Controller defect
Reasons
[Hier eingeben]
Solution
Check whether cable and
circuit
breaker are connected
Start up heat pump to run.
1. Verify water temperature
setting
2. Start up heat pump after a
few minutes
3. Wire controller should
display
"Defrosting"
1. Adjust the mode
2. Replace the defect wire
controller, and then check the
status after changing the
running mode, verifying the
water inlet and outlet
temperature
3. Replace or repair the heat
pump
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