Beretta POWER PLUS Installation Instruction page 57

N° N° on PC Cause
A06 6 Internal error
A07 7 Internal error
A08 8 Internal error
A09 9 50Hz error
A10 10 Internal error
A11 11 Internal software error
A12 12 Internal error
Outlet sensor exceeded temperature
A17 17
limit
Return sensor exceeded temperature
A18 18
limit
Maximum temperature thermostat con-
A16 16
tacts open with the burner off
Flue gas sensor tripped for over-
A19 19 temperature > 80°C (fan operates at
maximum speed)
The fl ame goes out too late after the
A20 20
gas valve closes
A22 22 Internal error
A23 23 Internal clock error
A24 24 Fan error
List of slave errors: automatic reset
N° N° on PC Cause
E33 33 Live and neutral reversed
Reset button error.
E34 34 The button has been pressed more
than 7 times in 30 minutes
Differential water pressure switch (open
E35 35
contacts)
E36 36 Internal error
E37 37 Flame detection error
E38 38 Flu gas sensor shorted
E39 39 Flue gas sensor contacts open
E40 40 The frequency is not 50 Hz
E41 41 Internal error
E42 42 Outlet sensor shorted
E43 43 Outlet sensor contacts open
E44 44 Return sensor shorted
E45 45 Return sensor contacts open
Outlet sensor exceeded temperature
E46 46
limit
Return sensor exceeded temperature
E47 47
limit
Flue gas sensor exceeded temperature
E48 48
limit (fan operates at maximum speed)
E49 49 No or bad ground connection
Checks and solutions
Replace the slave board
Replace the slave board
Replace the slave board
The mains frequency is not 50Hz
Replace the slave board
Press the reset button
Replace the slave board
Check that the fl ow rate in each unit's water circuit is correct. 2 m
each unit
Check that the fl ow rate in each unit's water circuit is correct. 2 m
each unit
Connector not properly connected or faulty.
Faulty maximum temperature thermostat
Insuffi cient heat exchange on fl ue gas side of heat exchanger.
Clean the heat exchanger on the fl ue gas side
Check that the gas valve is functioning correctly.
Replace the gas valve
Replace the slave board
Internal clock error
Can be caused by a transient power failure
The error disappears after a few seconds
The measured fan speed varies too much from the read speed
Check the fan
Check the fan's electrical connections
Replace the fan
Checks and solutions
Restore the correct live-neutral connections
Wait for the error to disappear.
If the error is still present after a maximum of 40 minutes, replace the
slave board
Check that the fl ow rate in each unit's water circuit is correct. 2 m
each unit. Replace the water pressure switch (cal 500 l/h)
Replace the slave board
Clean the electrodes. Replace the electrodes
Check the fl ue gas sensor connector. Replace the fl ue gas sensor
Check the fl ue gas sensor connector. Replace the fl ue gas sensor
Check the frequency of the mains power supply
Replace the slave board
Check the outlet sensor connector. Replace the outlet sensor
Check the outlet sensor connector. Replace the outlet sensor
Check the return sensor connector. Replace the return sensor
Check the return sensor connector. Replace the return sensor
Check that the fl ow rate in each unit's water circuit is correct. 2 m
each unit
Check that the fl ow rate in each unit's water circuit is correct. 2 m
each unit
Check that the fl ow rate in each unit's water circuit is correct. Approx. 2
3
m /h for each unit. Clean the heat exchanger on the water and fl ue gas
sides
Check the ground connection
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