Troubleshooting; Error Codes - Baxi EVOlution PRIME 28 Manual De Uso

9.

TROUBLESHOOTING

Display notifications can be of two types: volatile or permanent. First shown on the display, is a code consisting of a letter and
2 digits. The letter indicates the type of fault: temporary (H) or permanent (E). The digits indicate the group the fault belongs to,
based on safety level. In alternation to the first, a second code will also flash, consisting of 2 digits, indicating the type of fault (see
the fault tables that follow).
TEMPORARY FAULT (H.x.x.)
The temporary fault is identified on the display with the letter "H" followed by a number (group). The temporary fault is a type of
fault that stops the boiler temporarily, and disappears as soon as the cause has been resolved.
PERMANENT FAULT (E.x.x)
The permanent fault is identified on the display with the letter "E" followed by a number (group). Press the RESET button for 1
second. If faults are displayed frequently, call the Authorised Service Centre.
RESET
9.1

Error codes

TEMPORARY FAULT
BOILER DISPLAY
VIEW
Group Specific
code code
Temporary loss of communication between gas valve and
H.01 .00
boiler board.
Maximum difference between flow and return temperature
H.01 .05
reached.
Flow temperature increasing too fast in heating mode.
H.01 .08
Temporary block 10 minutes.
H.01 .14 Maximum flow temperature value reached.
H.01 .18 No circulation of water (temporary).
Flow temperature increasing too fast in dhw mode.
H.01 .21
Temporary block 10 minutes.
7730585(02-11/19)
BO-0000076
BO-0000075
DESCRIPTION OF TEMPORARY FAULTS
Check the operation of the temperature sensors
Check the connection of the temperature sensors
Check the boiler/system circulation
Check that the exchanger is clean
Check the operation of the temperature sensors
Check the connection of the temperature sensors
Check the boiler/system circulation
Check the operation of the temperature sensors
Check the connection of the temperature sensors
Check the operation of the temperature sensors
Check the connection of the temperature sensors
12
CAUSE
Check / Solution
MAIN BOARD ERROR
Configure CN1/CN2
Replace the main board
INSUFFICIENT CIRCULATION
Check the boiler/system circulation
Activate a manual vent cycle
Check the system pressure
OTHER CAUSES
Check that the exchanger is clean
INSUFFICIENT CIRCULATION
Activate a manual vent cycle
Check the system pressure
OTHER CAUSES
INSUFFICIENT CIRCULATION
Activate a manual vent cycle
INSUFFICIENT CIRCULATION
Check the system pressure
Activate a manual vent cycle
Check the operation of the pump
Check the boiler/system circulation
TEMPERATURE SENSOR ERROR
INSUFFICIENT CIRCULATION
Check the system pressure
Activate a manual vent cycle
Check the operation of the pump
Check the boiler/system circulation
TEMPERATURE SENSOR ERROR