DeDietrich AMC 15 User Manual

Code Text display Description Recommendation
H01.14 Max Tflow Flow temperature has exceeded the
maximum operating value
Flow temperature sensor above normal range
(high-limit thermostat):
Bad connection: check the wiring and connec
tors.
No flow or insufficient flow:
Check the circulation (direction, pump,
valves).
Check the water pressure.
Check the cleanliness of the heat exchanger.
H01.15 Max Tflue Gas Flue gas temperature has exceeded
the maximum operating value
-
H01.21 Dhw Temp GradLevel3 Maximum Dhw Temperature
Gradient Level3 Exceeded
The flow temperature has risen too fast:
Check the flow (direction, pump, valves)
Check that the heating pump is operating cor
rectly
H02.00 Reset In Progress Reset In Progress Reset procedure active:
No action
H02.02 Wait Config Number Waiting For Configuration Number Configuration error or unknown configuration
number:
Reset and (see boiler data plate).
H02.03 Conf Error Configuration Error Configuration error or unknown configuration
number:
Reset and (see boiler data plate).
H02.04 Parameter Error Parameter Error Factory settings incorrect:
Parameters are not correct:
Restart boiler
Reset and
Replace the control unit
H02.05 CSU CU mismatch CSU does not match CU type Configuration error:
Reset and .
H02.09 Partial block Partial blocking of the device
recognized
Blocking input active or frost protection active:
External cause: remove external cause.
Wrong parameter set: check the parameters.
Bad connection: check the connection.
H02.10 Full Block Full blocking of the device
recognized
Blocking input is active (without frost protection):
External cause: remove external cause.
Wrong parameter set: check the parameters.
Bad connection: check the connection.
H02.12 Release Signal Release Signal input of the Control
Unit from device external
environment
Waiting time release signal has elapsed:
External cause: remove external cause.
Wrong parameter set: check the parameters.
Bad connection: check the connection.
H02.31 AF needed Device requires Auto filling of the
water system due to low pressure
Refill the system using the automatic filling unit.
H02.38 No water hardness No hardness of water -
H02.70 HRU test error External heat recovery unit test
failed
Check the external heat recovery system.
H03.00 Parameter Error Safety parameters level 2, 3, 4 are
not correct or missing
Parameter error: security kernel
Restart the boiler
Replace the CU-GH08 control panel
H03.01 CU to GVC data error No valid data from CU to GVC
received
Communication error with the CU-GH PCB:
Restart the boiler
11 Troubleshooting
116 AMC 7686707 - v.01 - 06092018

DeDietrich AMC 15 Specifications

General

Brand	DeDietrich
Model	AMC 15
Category	Boiler
Language	English