REMEHA Quinta Ace 30 Installation And User Manual page 57

Code Display text
H01.08 CH Temp Grad. Level3
H01.14 Max Tflow
H01.15 Max Tflue Gas
H02.00 Reset In Progress
H02.02 Wait Config Number
H02.03 Conf Error
H02.04 Parameter Error
H02.05 CSU CU mismatch
H02.09 Partial block
H02.10 Full Block
H02.12 Release Signal
H02.38 No water hardness
H02.70 HRU test error
7684359 - v.06 - 10012019
Description
Maximum CH temperature gradient
level3 exceeded
Flow temperature has exceeded the
maximum operating value
Flue gas temperature has exceeded
the maximum operating value
Reset In Progress
Waiting For Configuration Number
Configuration Error
Parameter Error
CSU does not match CU type
Partial blocking of the device
recognized
Full blocking of the device
recognized
Release Signal input of the Control
Unit from device external
environment
No hardness of water
External heat recovery unit test
failed
Solution
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 central heating system 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
Flow temperature sensor above normal range:
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
Maximum flue gas temperature exceeded:
Check the flue gas outlet system
Check the heat exchanger to ensure that the
flue gas side is not clogged
Faulty sensor: replace the sensor
Reset procedure active:
No action
Configuration error or unknown configuration
number:
Reset CN1 and CN2
Configuration error or unknown configuration
number:
Reset CN1 and CN2
Factory settings incorrect:
Parameters are not correct:
Restart the boiler
Reset CN1 and CN2
Replace the CU-GH PCB
Configuration error:
Reset CN1 and CN2
Blocking input active or frost protection active:
External cause: remove external cause
Wrong parameter set: check the parameters
Bad connection: check the connection
Blocking input is active (without frost protection):
External cause: remove external cause
Wrong parameter set: check the parameters
Bad connection: check the connection
Waiting time release signal has elapsed:
External cause: remove external cause
Wrong parameter set: check the parameters
Bad connection: check the connection
-
Check the external heat recovery system.
10 Troubleshooting
57