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Fault tracing tree

X11-X15

6 720 619 265-18.1I

6 720 643 196 (2010/02)

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Summary of Contents for X Series

Page 1: ...Fault tracing tree X11 X15 6 720 619 265 18 1I 6 720 643 196 2010 02 ...

Page 2: ... heating system water 13 2 3 7 Low heat transfer fluid coll in 14 2 3 8 Low heat transfer fluid coll out 15 2 3 9 T1 T3 T6 T11 16 2 3 10 T5 16 2 3 11 T81 pool control 17 2 3 12 Electric element fault 18 2 3 13 Heat pump now working at max permitted temp T8 18 2 3 14 Electric element now working at max permitted temp T8 18 2 3 15 Compressor does not reach correct frequency 19 2 3 16 Fault in HTF pu...

Page 3: ...uctions Repairs B Repairs may only be carried out by an authorised serv ice technician B Switch off the main power switch before carrying out work on the unit B Switch off the power to the unit e g via fuse LS switch before starting work on the electrical part B Only use original spare parts Instructions to the customer B Explain that the customer may not modify or repair the installation B Recomm...

Page 4: ...age 3 the intermediate stage is not observed If the fault is rectified the unit starts without an error message fault tracing is complete If the fault remains after the actions have been taken and also after restarting Continue the work at the next given stages If another fault is revealed use the relevant fault tables 2 3 1 Display out Check Action 1 Has the miniature circuit breaker tripped gree...

Page 5: ...easure the connection on terminal blocks for G3 Do2 N Is there 230V yes Æ9 no B Check glass fuse if intact replace I O circuit board 4 Does the I O circuit board transmit 3VDC out on terminal block Ao2 B Ensure that 10V control is selected and that automatic pump control is off Example of correctly set Stratos in 10V operation running at 2600 rpm yes B Check wiring 0 10 V to the stratos pump If in...

Page 6: ...e recur Æ 10 10 B Check that the LP switch trips at the correct value 1 5 bar Requires refrigeration authorisation and a manometer stand yes Does the error message recur Æ 11 no Æ 11 11 B Check the connection to the LP switch Di1 Measure the ohmage at the same time to see if the connection is closed or broken tripped Did that help yes Does the error message recur Æ 12 no Æ 12 12 Faulty LP switch B...

Page 7: ...e recur Æ 4 4 B Go to alarm history What did the heat pump do on that occa sion was the three way valve connected yes Æ 7 no Æ 5 5 B Check the dirt filter on the hot side Is there dirt in it yes B Clean the filter no Does the error message recur Æ 6 6 B Check the flow in the heating circuit Is it sufficient with the thermostats open yes Æ 12 no B Open the thermostat valves Does the error message r...

Page 8: ...the three way valve Does it react yes Æ 11 no B Check the connections Do4 and Do4 L against zero In activated mode it must be 230V against zero Does the error message recur Æ 11 11 B Remove the motor Use pliers to move the valve stem in and out Does it move easily yes B Reinstall the motor manually operate it to allow the motor to engage in the valve stem Æ 12 no B Replace valve insert Does the er...

Page 9: ...oes the error message recur Æ 16 15 B Check the connections between the terminals Di3 and the I O circuit board Was there a fault yes B Rectify the fault Does the error message recur Æ 16 no Æ 16 16 Is the LED on the I O circuit board flash ing yes B Replace I O card Does the error message recur Æ 17 no B Check the CANbus connections and power con nections Does the error message recur Æ 17 17 Cont...

Page 10: ... meas ure at the T6 sensor Do the values correspond yes Æ 2 no B Check the attachment of the T6 replace sensor if necessary Does the error message recur Æ 2 2 B Go to temperature display of T10 and T11 Is T10 below 5 or delta 5 K or more than between T10 T11 yes B Troubleshoot on the cold side no B Have a refrigeration technician check the cooling circuit Does the error message recur Æ 3 3 B Check...

Page 11: ...4 no B Check that relay HR1 is connected and that G3 has reached maximum speed Does the error message recur Æ 3 3 B Check the dirt filter on the hot side and clean it Does the error message recur Æ 4 4 B Go to alarm history and check what the heat pump did when the alarm was activated Did the heat pump produce hot water yes Æ 5 no Æ 8 5 B Go to manual operation and activate the three way valve Doe...

Page 12: ...oes the error message recur Æ 10 10 Is the room sensor connected yes Æ 11 no Æ 13 11 B Go to temperatures and check the value on T5 B Use a digital thermometer and meas ure at the T5 sensor Do the values correspond yes Æ 12 no B Replace sensor Does the error message recur Æ 13 12 B Check the settings of the room sensor Does the room sensor have a high effect or set point value yes B Adjust to the ...

Page 13: ...t and clean it Does the error message recur Æ 2 2 B Go to temperatures and check the value on T8 and T9 B Use a digital thermometer and meas ure at the sensor Do the values correspond yes Æ 3 no B Check the sensors and replace if necessary Does the error message recur Æ 4 3 B Check the flow in the heating system B Check that the thermostat valves are open Does the error message recur Æ 4 4 The hea...

Page 14: ...ion 1 B Start the heat transfer fluid coll pump in the manual operation menu B Compare the value on T10 in the info menu with one from a separate digital thermometer Do the values correspond yes Æ 2 no B Replace sensor T10 2 Is the value above 7 on T10 yes Æ 3 no Æ 4 3 B Replace control board Does the error message recur yes Replace I O card no 4 There is not enough energy in the heat absorbing sy...

Page 15: ...the values correspond yes Æ 2 no B Replace sensor T11 2 B Perform a quick start of the compres sor when the alarm has reset automat ically B Check delta is it between 1 and 6K yes Æ 3 no Too low flow in the heat transfer fluid circuit B Increase the speed of the heat transfer fluid coll pump B Vent the heat transfer fluid circuit for 24 hours B Clean the particle filter B Check the heat transfer f...

Page 16: ...sensor Does the error message recur Æ 4 4 B Check conductive pathways on the I O circuit board Are the conductive pathways damaged yes B Replace I O card Does the error message recur Æ 5 no Æ 5 5 B Check the CANbus connections between the circuit boards Is the wiring OK yes Æ 6 no B Replace the wiring Does the error message recur Æ 6 6 Logic error in the control board B Replace control board Tab 9...

Page 17: ...ck the wiring to the sensor Does the error message recur Æ 3 3 B Disconnect the sensor B Check the resistance and compare with the table Do the values correspond yes Æ 4 no B Replace the sensor Does the error message recur Æ 4 4 B Check conductive pathways on the pool circuit board Are the conductive pathways damaged yes B Replace pool circuit board Does the error message recur Æ 5 no Æ 5 5 B Chec...

Page 18: ...rcuit board terminals Is it OK yes Æ 2 no B Check the wiring in the heat pump 2 B Try to reset the overheat protection again Was it successful yes Does the error message recur Æ 3 no Æ 3 3 Overheat protection electric element defective B Replace the AHB board Tab 12 6 720 643 196 10 1I Description Value on T8 has exceeded 65 C See fault tracing tree High forward flow T1 Æ Chapter 2 3 5 Tab 13 6 72...

Page 19: ...tree ÆChapter 2 6 Tab 16 6 720 643 196 13 1I Description High temperature on driver circuit board The temperature is taken from a sensor mounted on the driver circuit board Check Action 1 Is the fan in the electric box running yes Æ 2 no B Check output Do3 on the I O circuit board B Replace fan or I O circuit board if necessary 2 If there flow through the cooling coil The hoses to the electric box...

Page 20: ...e CANbus connections and terminations no B Check the CANbus connections and terminations Didn t that help B Replace the AHB board Tab 18 6 720 643 196 15 1I Description No contact with I O circuit board Check Action Is the green LED on the I O circuit board flashing yes B Check the CANbus connections and terminations no B Check the CANbus connections and terminations Didn t that help B Replace I O...

Page 21: ... B Measure voltage between zero and both sides on glass fuse F1 on the I O circuit board IOB Is there 230V phase to zero yes Æ 7 no Glass fuse defective 7 B Check that the green LEDs on the I O circuit board AHB circuit board and the display circuit board flash 1 sec yes Æ 8 no B Check 12V on CANbus B Check the CANbus connections 8 Does the red LED on the inverter circuit board illuminate for a fe...

Page 22: ... P2 TB C1 and TB N1 Didn t that help Æ 13 13 Is TB N1 TB P2 450 680VDC Is TB N1 TB C1 225 340VDC Is TB C1 TB P2 225 340VDC yes Æ 14 no Didn t that help Æ 14 14 B Check the wiring between the inverter circuit board and compressor Terminal block on inverter circuit board Cable colour Terminal block on com pressor TB U black U TB V brown V TB W grey W yes Æ 15 no B Replace wiring if burnt If the comp...

Page 23: ...inverter circuit board is defec tive B Check whether the compressor is defective B Check whether the initiation data is incorrect NAK 0 3 Stoppage due to overvoltage DC The com pressor increases too quickly B Check the supply 15V DC NAK 0 4 Current sensor warning Current sensor defective B Replace inverter circuit board NAK 0 5 Thermistor tripped on inverter circuit board Faulty sensor in power tr...

Page 24: ...ter temperature 110 C Heat regulation incorrectly set B Set to lower temperature E10 Blocking pump E g due to deposits Unblocking procedure starts auto matically If the blocking is not lifted after 40 seconds the pump turns off B Contact service E20 Overtemperature winding Motor overloaded Allow the motor to cool B Check filter and any glycol con tent E21 Motor overloaded Deposits in the pump B Co...

Page 25: ...minutes in operating mode HW they are sent on as error messages Cod e Alarm text Cause Action E03 Water temperature 110 C Heat regulation incorrectly set B Set to lower temperature E04 Grid undervoltage Grid overloaded B Check electrical connections E05 Grid overvoltage Incorrect supply from power company B Measure the voltage contact the power company E11 Idle pump Air in the pump housing B Vent ...

Page 26: ...6 720 643 196 2010 02 26 Notes ...

Page 27: ...6 720 643 196 2010 02 27 ...

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