Bering BEXP05i Benutzer- Und Wartungshandbuch Seite 45

8.2 Other Malfunctions and Solutions (No display on LED wire controller)
Malfunctions
LED wire controller
no display.
LED wire controller.
Displays the actual time.
Heat pump is
not running
LED wire controller
displays the actual
water temperature.
Water
LED wire controller
temperature is
displays actual water
cooling when HP
temperature and no
runs under
error code displays.
heating mode
LED displays actual water
Short running temperature, no error
code displays.
Water stains on heat
water stains
pump unit.
Too much ice on Too much ice on
evaporator evaporator.
Observing
No power supply
Heat pump under standby
status
1. Water temperature is
reaching to setting value,
HP under constant
temperature status.
2. Heat pump just starts to
run.
3. Under defrosting.
1. Choose the wrong mode.
2. Figures show defects.
3. Controller defect.
1. Fan NO running.
2. Air Fan is not enough.
3. Refrigerant is not
enough.
1. Concreting.
2. Water leakage.
Reasons
Check cable and circuit breaker if it is
connected
Startup heat pump to run.
1. Verify water temperature setting.
2. Startup heat pump after a few
minutes.
3. LED wire controller should display
"Defrosting".
1. Adjust the mode to proper running
2. Replace the defect LED 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 unit
1. Check the cable connections
between the motor and fan, if
necessary, it should be replaced.
2. Check the location of heat pump unit,
and eliminate all obstacles to make
good air Fan.
3 Replace or repair the heat pump unit.
1. No action.
2. Check the titanium heat exchanger
carefully if it is any defect.
1. Check the location of heat pump unit,
and eliminate all obstacles to make
good air Fan.
2. Replace or repair the heat pump unit.
41
Solution