DeDietrich AMC 15 User Manual

Code Text display Description Recommendation
A02.49 Failed Init Node Failed Initialising Node SCB PCB not found:
Carry out an auto-detect
A02.55 Inval or miss SerNR Invalid or missing device serial
number
Contact your supplier.
A02.69 Fair mode active Fair mode active Contact your supplier.
A02.76 Memory full The reserved space in memory for
custom parameters value is full. No
more user changed possible
Configuration error:
Reset and (see boiler data plate).
Replace the CU-GH08 control unit.
A08.02 Shower Time Elapsed The time reserved for the shower
has elapsed
Take a shorter shower or adjust parameter
DP357.
11.1.2 Control unit blocking codes
Tab.81 CU-GH08 blocking codes
Code Text display Description Recommendation
H00.81 RoomTempMissing Room Temperature sensor was
expected but not detected
Room temperature sensor not detected:
Room temperature sensor is not connected:
Connect the sensor
Room temperature sensor is not connected
correctly: Connect the sensor correctly
H01.00 Comm Error Communication Error occured Communication error with the security kernel:
Restart boiler
H01.05 Max Delta TF-TR Maximum difference between flow
temperature and return temperature
Maximum difference between the flow and return
temperature exceeded:
No flow or insufficient flow:
Check the flow (direction, pump, valves)
Check the water pressure
Check the cleanliness of the heat exchanger
Sensor error:
Check that the sensors are operating correct
ly
Check that the sensor has been fitted proper
ly
H01.08 Delta T Max 3 Delta T Max 3 Maximum heat exchanger temperature increase
has been exceeded:
No flow or insufficient flow:
Check the circulation (direction, pump,
valves).
Check the water pressure.
Check the cleanliness of the heat exchanger.
Check that the installation has been correctly
vented to remove air.
Sensor error:
Check that the sensors are operating correct
ly.
Check that the sensor has been fitted proper
ly.
H01.09 Gas Pressure Switch Gas Pressure Switch Gas pressure too low:
No flow or insufficient flow:
Check that the gas valve is fully opened
Check the gas supply pressure
Wrong setting on the GPS gas pressure switch:
Check whether the Gps switch is installed
correctly
Replace the Gps switch if necessary
11 Troubleshooting
7686707 - v.01 - 06092018 AMC 115

DeDietrich AMC 15 Specifications

General

Brand	DeDietrich
Model	AMC 15
Category	Boiler
Language	English