Danfoss Heat Pump Průvodce řešením problémů

Technical documentation | Air and ground source heat pumpsLooking for support? Heat Pump Troubleshooting GuideError phase sequence 02Working presso

10VMIFB202Phase drop or blown fuseAction:Check that all phases are present on the terminal block for incoming supply.If not, check the fuses in the ca

11VMIFB202Troubleshooting Guide Alarm motor protectionDefective or incorrectly set motor protectionAction:Use a hook-on ammeter to establish when the

12VMIFB202The circulation pump’s integrated alarm has deployedAction:Check if there is air in the heat transfer uid circuit that can gather in the ci

13VMIFB202Troubleshooting Guide Alarm BrinepumpThe circulation pump’s integrated alarm has deployedAction:Check if there is air in the brine circuit

14VMIFB202Alarm BrineAction:Check the set value on ALARM BRINE in the heat pump’s control computer under service-heat pump-temperatures-alarm brine.

15VMIFB202Alarm sensorAction:Measure the resistance of the sensor, check the ohm value against the temperature according to the table below.. If the a

16VMIFB202Alarm communicationAction:Check if the communication between the display card and relay card is broken.Test with another TP cable or communi

17VMIFB202Phase dropAction:Check that there is 230 V between incoming L2 on the circuit board and neutral on block 220. Check if the overheating prote

18VMIFB202Whistling expansion valveAction:Try tapping gently on the expansion valve.Open and close the valve fully in and out and adjust the expansion

19VMIFB202The compressor’s IPR valve opensAction:When the valve opens, this is indicated by the pressure on the low pressure side rising and reaching

2VMIFB202The incoming phases have the incorrect sequence (only applies to 3-phase heat pumps).Action:Reset the phasesWhen the compressor runs with the

20VMIFB202Touching pipes – vibrationsAction:Establish which pipe(s) causes vibrations and try to remove the tension that is causing the vibrations by,

21VMIFB202Vibrating protective sleeves on the pressure switchesAction:Establish where the vibration noise occurs, if the vibration is in the protectiv

22VMIFB202Defective 3-way valve motorAction:Check that the motor can be run to the limit positions in a manual test.If it is still, measure at the mol

23VMIFB202Water heater too small in relation to requirementAction:Check the requirement and the water heater capacity.Replace with a larger heater or

24VMIFB202The house heating comfort is not adjusted to the customer’s requirementsAction:Check the ROOM, CURVE and MIN settings. Adjust incorrect valu

25VMIFB202Defective Honeywell 3-way valveAction:The motor should set the valve to the relevant end position depending on operating conditions. If it d

26VMIFB202Defective G2 shunt (HGW)Action:Check the function of the HGW shunt by test running it manually. If the motor does not shift mode during manu

27VMIFB202Basic setting G2 shunt + motorAction:Important to reset the shunt after taking the shunt apart!The groove of the white six edged sleeve must

28VMIFB202Only runs on the additional heatAction:Ensure that the heat pump is not in additional heater only mode. If additional heater only mode is se

29VMIFB202Incorrect ow in the brine circuitAction:Check the dierence between the supply and return line using a digital thermometer. The dierence s

3VMIFB202Troubleshooting Guide Working pressostat and high pressure pipeThe operating pressure switch does not closeSwitch o the main switch for the

30VMIFB202Build-up of ice under and around the outdoor unit or water collectingAction:Drain the ground under and around the outdoor unit so that it ca

31VMIFB202Outdoor sensor/Defrost sensorAction:Check that the outdoor sensor/defrost sensor is installed according to the installation instructions and

32VMIFB202Room sensorThe image shows one of the models of room sensor availableThe room temperature sensor has a temperature sensor that provides a fu

33VMIFB202Water does not get hotAction:Check fuse(s).Check if there is cold water supply, if not, check why and rectify the fault.Check if the overhea

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4VMIFB202Hot gas temperature too high See in service under heat pump also check using own digital thermometer.Action:Check the refrigerant circuit see

5VMIFB202Troubleshooting Guide Alarm high pressureBlocked strainer in the heating system return Action:

6VMIFB202Tip!Be careful not to spill water because there are electronics under the radiator pump; use something to protect the electronics.NOTE! This

7VMIFB202Troubleshooting Guide Alarm high pressureThe operating pressure switch does not open but the heat pump opens at high pressure Action:Check t

8VMIFB202Blocked strainer on the brine circuit.Action:Check for brine in strainer (if necessary clean the strainer)Closed taps, main tap or ller cock

9VMIFB202Troubleshooting Guide Alarm low pressureExpansion valve defective or incorrectly setAction:Check that the cooling is correct for the specic