Fault Codes - DeDietrich EASYLIFE ALEZIO O HYBRID User Manual

Error code Message
H02.00 RESET IN PROGRESS
H02.02 WAITING FOR
CONFIGURATION
NUMBER
H02.03 CONFIGURATION
ERROR
H02.04 PARAMETER ERROR
H02.05 CSU
H02.06 WATPRESSURE
WARNING
H02.07 WATPRESSURE
ERROR
H02.09 PARTIAL BLOCK
H02.10 FULL BLOCK
H02.23 SYSTEM FLOW ERROR Flow problem
H02.25 TAS ERROR
H02.26 FLUE GAS PRESSURE
SWITCH BLOCKING
H02.27 FLUE GAS
TEMPERATURE
SWITCH BLOCKING
H02.36 FUNCTIONAL DEVICE
DISCONNECTED
H02.37 UNCRITICAL DEVICE
DISCONNECTED
H02.40 FUNCTION
UNAVAILABLE
H02.43 FLUE GAS PRESSURE
SWITCH NOT
SWITCHED
H02.45 ERROR CAN
H02.46 ERROR CAN
H06.01 HP UNIT FAILURE
H07.00 BURNER FAULT
7613346 - v06 - 02072019
Description
Reset under way
Central unit PCB replaced: boiler not configured.
Incorrect configuration of the central unit PCB parameters
Memory error
Low pressure in the heating circuit: add water to the system.
Re-pressurise the system.
Check the pressure in the expansion vessel.
Check for leaks in the boiler and the system.
Insufficient water pressure
Check the hydraulic pressure in the heating circuit.
BL input on the central unit PCB terminal block open
BL input on the central unit PCB terminal block open
Insufficient flow: open a radiator valve.
The circuit is clogged:
Check that the filters are not obstructed and clean them if necessary.
Clean and flush the installation,
Titan Active System short circuited or on an open circuit
Flue gas pressure switch defective
If this message is generated 5 times in less than 24 hours, the appliance locks down
and displays the code E30.
Maximum flue gas temperature exceeded
If this message is generated 5 times in less than 24 hours, the appliance locks down
and displays the code E31.
No communication between the central unit PCB and the additional circuit PCB
No communication between the central unit PCB and the additional circuit PCB
Function not available in the control system
Burner start-up without the pressure switch being tripped
CAN error.
CAN error.
Heat pump outdoor unit fault
No ignition arc
Burner control and safety box defective
No flame signal
Air present in the oil circuit
Flame present but flame signal weak
8.1.2

Fault codes

If a fault code is still present after several automatic start-up attempts, the
boiler switches to error mode.
If a fault code is still present after several automatic start-up attempts, the
heat pump switches to error mode.
The boiler will only resume normal operation once the causes of the fault
have been eliminated by the installer.
The heat pump will only resume normal operation once the causes of the
fault have been eliminated by the installer.
8 Troubleshooting
200 ESL HYBRID 53