DeDietrich AMC 15 User Manual

Code Text display Description Recommendation
H03.02 Flame loss detected Measured ionisation current is below
limit
No flame during operation:
No ionisation current:
Purge the gas supply to remove air.
Check whether the gas tap is properly open.
Checking the gas supply pressure.
Check the operation and setting of the gas
valve unit.
Check that the air inlet and flue gas dis
charge flues are not blocked.
Check that there is no recirculation of flue
gases.
H03.05 Internal blocking Gas Valve Control internal blocking
occured
Security kernel error:
Restart the boiler
Replace the CU-GH08 control panel
H03.17 Safety check Periodically safety check ongoing -
11.1.3 Control unit locking codes
Tab.82 CU-GH08 locking codes
Code Text display Description Recommendation
E00.04 TReturn Open Return temperature sensor is either
removed or measures a temperature
below range
Open circuit in return temperature sensor:
Bad connection: check the wiring and connec
tors.
Incorrectly fitted sensor: check that the sensor
has been correctly fitted.
Faulty sensor: replace the sensor.
E00.05 TReturn Closed Return temperature sensor is either
shorted or measures a temperature
above range
Return temperature sensor short-circuited:
Bad connection: check the wiring and connec
tors.
Faulty sensor: replace the sensor.
E00.06 TReturn Missing Return temperature sensor was
expected but not detected
No connection to temperature return sensor:
Bad connection: check the wiring and connec
tors.
Faulty sensor: replace the sensor
E00.07 dTReturn Too High Return temperature difference is too
large
Difference between the flow and return tempera
tures too great:
No circulation:
Vent the air from the CH system
Check the water pressure
If present: check the boiler type parameter
setting
Check the circulation (direction, pump,
valves)
Check that the heating pump is operating
correctly
Check the cleanliness of the heat exchanger
Sensor not connected or incorrectly connected:
Check that the sensors are operating correct
ly
Check that the sensor has been fitted proper
ly
Faulty sensor: replace the sensor if necessary
E00.16 DHW sensor Open Domestic Hot Water tank
temperature sensor is either
removed or measures a temperature
below range
Calorifier sensor open:
Bad connection: check the wiring and connec
tors.
Faulty sensor: replace the sensor.
11 Troubleshooting
7686707 - v.01 - 06092018 AMC 117

DeDietrich AMC 15 Specifications

General

Brand	DeDietrich
Model	AMC 15
Category	Boiler
Language	English