8 Troubleshooting
Code
Display text
E.04.13
Fan
E.04.15
FlueGas Pipe Blocked
E.04.17
GasValve Driver Err.
E.04.23
Internal Error
E.04.250
Internal error
8.2
Error history
8.2.1
Reading out and clearing the error history
Fig.61
Error details
22/02/2018 11:20
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Error Code: A.00.00
20/02/2018 16:51
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56
Description
Fan speed has exceeded normal op
erating range
The flue gas pipe is blocked
The driver for the gas valve is bro
ken
Gas Valve Control internal locking
Gas valve relay error detected
....... ...
.......
AD-3001381-01
Solution
Fan fault:
Flue gas outlet is blocked:
Gas valve unit fault:
Internal error:
The control panel has an error history that stores the last 32 errors.
Specific details are stored for each error, for example:
Status
Sub-status
Flow temperature
Return temperature
These details and others can contribute to the error solution.
You can read out the errors on the control panel. The error history can
also be cleared.
> Error History
Use the rotary knob to navigate.
Use the
button to confirm your selection.
1. Press the
button.
2. Select Error History.
Enable installer access if Error History is not available.
2.1. Select Enable installer access.
2.2. Use code 0012.
A list up to 32 most recent errors is displayed with:
The error code.
A short description.
The date.
3. Select the error code you want to investigate.
The display shows an explanation of the error code and several
details of the appliance when the error occurred.
4. To clear the error memory, press and hold the
Bad connection: check the wiring and connec
tors.
Fan operates when it should not be operating:
check for excessive chimney draught
Faulty fan: replace the fan
Check that the flue gas outlet is not blocked
Restart the boiler
Bad connection: check the wiring and connec
tors
Faulty gas valve unit: Replace the gas valve
unit
Restart the boiler
Replace the CU-GH
Replace the PCB.
7703943 - v.06 - 13122021
button.