8 Troubleshooting
8.1 Error codes
1
Control panel
2
Main display icons
3
Example of temporary error code (Low water pressure)
4
Example of permanent error code (Low water pressure)
5
Example of typical display after a successful RESET
In the unlikely event of an error occurring the display will show either a
flashing triangle, or a flashing triangle with RESET. The display will also
flash and show the error code (see Error Code tables).
A warning triangle indicates a temporary fault. (3)
A warning triangle with RESET indicates a permanent fault. (4)
A temporary fault is indicated by an ‘H’ followed by a two-digit code num
ber (e.g. .02). This code flashes and alternates with a second two-digit
code (e.g. .06) to indicate the specific fault. (3)
A temporary fault prevents the boiler operating but will automatically reset
once the cause of the fault has been resolved.
Tab.9 Temporary error code descriptions
Error code Description of fault
H01 00 Temporary loss of communication between the gas valve
and boiler PCB
H01 05 Maximum difference between flow and return temperature
reached
H01 08 Flow temperature increasing too quickly in heating mode
H01 14 Maximum flow temperature value reached
H01 18 No circulation of water in the system
H02 06 Low water pressure in the heating circuit
H03 02 Temporary loss of flame
A permanent fault ‘Lock out’ is indicated by an ‘E’ followed by a two-digit
code number (e.g. .02). This code flashes and alternates with a second
two-digit code (e.g. .07) to indicate the specific fault (4)
A permanent fault prevents the boiler operating and will not automatically
reset. Once the fault condition has been rectified the RESET button must
be pressed for at least 3 seconds to restart the boiler.
If the error cannot be reset, or it frequently re-occurs, please contact your
Installer, Annual Service Provider or Baxi Customer Support . You can
contact Baxi Customer Support on 0344 871 1545.
When contacting Baxi Customer Support it will be useful to have the
‘Benchmark Checklist’ at the back of the Installation & Service Manual to
hand as it includes details relevant to the boiler and installation.
Tab.10 Permanent error code descriptions
Error code Description of fault
E04 01
E04 02
Flow temperature sensor fault
E00 04
E00 05
Return temperature sensor fault
E04 04
E04 05
Flue temperature sensor fault
Fig.16 Display errors
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