Fault Finding; Fault Switch-Off - Potterton Paramount five 50 Installation Manual

Fault Error description
code
347 Solid fuel boil comp sensor missing
348 Solid fuel boiler address error
349 Storage buffer return valve Y15 missing
350 Storage buffer address error
351 Primary controller/supply pump address error
352 Low-loss header address error
353 Common flow sensor B10 missing
371 Flow temperature 3 (Heating circuit 3) monitoring
372 Temperature monitor HK3
373 Expansion module 3 fault (collective fault)
378 Repetition counter internal fault expired
382 Repetition counter fan fault expired
384 External light
385 Mains undervoltage
386 Fan speed has left valid range
387 Air pressure switch fault
426 Feedback flue damper
427 Configuration flue damper
432 Functional earth X17 not connected
(1) Switch off, start prevention, re-start after elimination of fault
(2) Check parameter in accordance with table Check the installer adjustment table and program to the basic settings or query internal LMS
SW diagnosis code and correct the corresponding parameter faults according to fault specification
(3) switch-off and locking; can only be unlocked by reset
11.2

Fault finding

7703046 - 01 - 23072018
Explanations/causes
11.2.1

Fault switch-off

Safety switch-off in case of flame failure during operation.
After every safety switch-off a new ignition attempt is carried out as per
program. If this does not result in flame formation a fault switch-off occurs.
In case of fault switch-off, the reset button on the control panel should be
pressed.
In case of operation disturbances (bell symbol in the display), the digit in
the display on the operating panel indicates the cause of the disturbance
(see fault code table).
Burner does not start:
No voltage at the control and regulating centre
No "burner ON" signal from the heating circuit control (see
table )
Gas tap closed
No ignition
Burner goes into fault mode (no flame formation):
No ignition
Ionization electrode has ground connection
Ionization electrode is not connected
No gas
Gas pressure too low
In spite of flame formation the burner goes into fault mode after expiration
of the safety time:
Ionization electrode defective or soiled
Ionization electrode does not penetrate the flame
Ionization electrode is not connected
11 Troubleshooting
Fault code
Paramount five 30 – 115 149