Error Codes; Shutdowns And Lock-Outs; Blocking; Lock Out - Potterton Titanium 12 Heat Engineer's Service Manual

8.0

Error Codes

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The status signal for the 'Chimney Sweep'button can flash in a range of colours and at different frequencies. The
meaning of these signals can be found below.

8.1 Shutdowns and lock-outs

8.1.1 Blocking

A (temporary) blocking mode is a boiler operating function caused by an unusual situation. The boiler control will try to
re-start several times. The boiler will start up again after the blocking conditions have been eliminated. In the event of
a shutdown, the status signal for the 'Chimney Sweep' button flashes green. The meaning of the shutdown codes can
be found in the table below.
Status signals
Shutdown code 1 (1 times green signal)
Shutdown code 2 (2 times green signal)
Shutdown code 3 (3 times green signal)
Shutdown code 4 (4 times green signal)
Shutdown code 5 (5 times green signal)
Shutdown code 6 (6 times green signal)
Table of blocking signals
Blocking
8.1.2. Lock-out
If the blocking conditions still exist after several start up attempts, the boiler will switch into locking mode (fault). The
boiler will only start operating again once the cause of the lock-out has been rectified and after pressing the RESET
button. In the event of a fault, the status signal for the 'Chimney Sweep' button flashes red. The description of the error
code is given in the error table.
Status signals
Error code 1 (1 times red signal)
Error code 2 (2 times red signal)
Error code 3 (3 times red signal)
Error code 4 (4 times red signal)
Error code 5 (5 times red signal)
Error code 6 (6 times red signal)
Table of Lock-out Signals
1
2
3
Description
Temperature protection
Blocking input
Flame loss
Communication error
Parameter or identification fault
Miscellaneous
Description
Sensor error
Maximum security
Ignition fault
Fan fault
Parameter error
Miscellaneous
11
Heating water temperature rotary knob
Chimney Sweep button and Status signals
RESET-button and on/off signal
Temperature protection
Blocking input
Flame loss
Communication error
Parameter error
Miscellaneous