Locking - DeDietrich C 340 Series Installation And User Manual

12 Troubleshooting
Code Display text
H.10.30 T Zone DHW closed
H.10.36 Sensor Zone AUX open Flow temperature sensor Zone AUX
H.10.37 Sens. ZoneAUX closed Flow temperature sensor ZoneAUX
H.10.38 T Dhw Zone AUX open
H.10.39 Sens. ZoneAUX Closed Domestic Hot Water temperature
Tab.131 Locking codes
Code Display text
E.00.00 TFlow Open
E.00.01 TFlow Closed
170 C 340 / C 640
Description
Domestic Hot Water temperature
sensor Zone DHW closed
open
closed
Domestic Hot Water temperature
sensor Zone AUX open
sensor Zone AUX closed
12.1.4

Locking

Description
Flow temperature sensor is either
removed or measures a temperature
below range
Flow temperature sensor is either
shorted or measures a temperature
above range
Solution
Domestic hot water temperature sensor zone
DHW short-circuited:
Bad connection: check the wiring and connec­
tors
Incorrectly fitted sensor: check that the sensor
has been correctly fitted
Faulty sensor: replace the sensor
When using thermostat instead of sensor: pa­
rameter CP502 must be set to off (=disable)
Flow temperature sensor zone AUX open:
Bad connection: check the wiring and connec­
tors
Incorrectly fitted sensor: check that the sensor
has been correctly fitted
Sensor is not present.
Faulty sensor: replace the sensor
Flow temperature sensor zone AUX short-circuit­
ed:
Bad connection: check the wiring and connec­
tors
Incorrectly fitted sensor: check that the sensor
has been correctly fitted
Faulty sensor: replace the sensor
Domestic hot water temperature sensor zone
AUX open:
Bad connection: check the wiring and connec­
tors
Incorrectly fitted sensor: check that the sensor
has been correctly fitted
Sensor is not present.
Faulty sensor: replace the sensor
Domestic hot water temperature sensor zone
AUX short-circuited:
Bad connection: check the wiring and connec­
tors
Incorrectly fitted sensor: check that the sensor
has been correctly fitted
Faulty sensor: replace the sensor
When using thermostat instead of sensor: pa­
rameter CP504 must be set to off (=disable)
Solution
Flow temperature sensor open:
Bad connection: check the wiring and connec­
tors.
Incorrectly fitted sensor: check that the sensor
has been correctly fitted.
Faulty sensor: replace the sensor.
Flow temperature sensor short circuited:
Bad connection: check the wiring and connec­
tors.
Incorrectly fitted sensor: check that the sensor
has been correctly fitted.
Faulty sensor: replace the sensor.
7762666 - v.02 - 29092020