Bering BEXP20i - General Malfunctions and Solutions

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