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QUICK GUIDE - GRUNDFOS UPM3(K) DHW
PUMP SETTINGS
Select the pump settings according to the operating environment.
Select constant curve 1, 2 or 3 as a control mode.
TROUBLESHOOTING
ALARM STATUS
FAULT
DISPLAY
FAULT
BLOCKED
LOW VOLTAGE
ELECTRICAL ERROR
SOLUTION
OPERATING PANEL
CONTROL MODE
Constant curve 1 – PWM signal off
Constant curve 2 – PWM signal off
Constant curve 3 – PWM signal off
Pump does not function, no power. Check that:
A the power plug is plugged in,
B the switch is turned on.
1. The LED is lit – An axle or impeller is stuck.
To release the axle/impeller, press on the screw in front of
the pump and turn it using a screw driver.
2. The LED is lit – Supply voltage too low
Check the supply voltage.
3. The LED is lit – Supply voltage too low, severe
malfunction
Check the supply voltage. Replace the pump.
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