DeDietrich AWHP 6 MR Installation And Service Manual page 114

8. Troubleshooting
Code Faults
D16 SWIM.P.B. S.FAIL
D16 SWIM.P.C. S.FAIL
D17 DHW 2 S.FAIL
D18 ST.TANK S.FAIL
D19 SOL.COL.S.FAIL
D20 SOL COM.FAIL
113
Cause Description
of the
fault
SCU Swimming pool sensor fault circuit B
Swimming pool sensor fault circuit C
Note:
Swimming pool reheating is always done
during the circuit's comfort period.
SCU Sensor fault tank 2
SCU Solar tank sensor fault
SCU Header sensor fault
SCU
Switch off heat pump and start up again
4
Check whether the solar module is switched on. If necessary, replace the fuse
4
¼ Refer to the installation, commissioning and service manual for the
DHW tank
Check the connection between the SCU-C and the solar module
4
AWHP MIT-IN iSystem
Checking / solution
Bad connection
Check whether the sensor is connected:
4
¼ See chapter: "Deletion of
sensors from the memory in the PCB",
page 114
Check the link and the connectors
4
Check that the sensor has been correctly
4
fitted
Sensor fault
Check the Ohmic value of the sensor
4
Replace the sensor if necessary
4
Bad connection
Check whether the sensor is connected:
4
¼ See chapter: "Deletion of
sensors from the memory in the PCB",
page 114
Check the link and the connectors
4
Check that the sensor has been correctly
4
fitted
Sensor fault
Check the Ohmic value of the sensor
4
Replace the sensor if necessary
4
Bad connection
Check whether the sensor is connected:
4
¼ See chapter: "Deletion of
sensors from the memory in the PCB",
page 114
Check the link and the connectors
4
Check that the sensor has been correctly
4
fitted
Sensor fault
Check the Ohmic value of the sensor
4
Replace the sensor if necessary
4
Bad connection
Check whether the sensor is connected:
4
¼ See chapter: "Deletion of
sensors from the memory in the PCB",
page 114
Check the link and the connectors
4
Check that the sensor has been correctly
4
fitted
Sensor fault
Check the Ohmic value of the sensor
4
Replace the sensor if necessary
4
24/09/2012 - 300027606-001-01