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mini HE --- Installation & Servicing44
If required, to check the PCB is set correctly for this boiler
type the following procedure should be followed.
Boiler mode setting
17 Remove the front panel of the case.
18 Position the control knob C as in the figure below and
disconnect the C.h. temperature probe.
CA DEB
19 Press and hold the reset button D for about 10 seconds
until the lock---out signal lamp E blinks.
20 C onnect the c.h.temperature probe.
21 Press the rese t button D repeatedly (twice) until the lamps
A give the indication as follows (boiler mode).
Where:
Lamp ON
Lamp OFF
At this time it is possible to determine the current setting by
keeping the reset button D pressed for more than 5 seconds.
If the lamps A flash once go to step 24; if not proceed as
follows:
22 Turn the knob B clo ckwise and then to minimum position.
By turning the knob B, the lock---out signal lamp E blinks
quickly (2 per s econd) indicating that the setting has
changed and must be memorized.
23 To memorize the setting press and hold the reset button D
for about 5 seconds until all the three lamps A briefly blink
simultaneously.
24 Press the reset button D ( once) until the lamps A give the
indication as follow:
Where:
Lamp ON
Lamp OFF
At this time it is possible to determine the current setting by
keeping the reset button D pressed for more than 5 seconds.
If the lamps A flash once go to step 27; if not proceed as
follows:
25 Turn the knob B clo ckwise and then to minimum position.
By turning the knob B, the lock---out signal lamp E blinks
quickly (2 per s econd) indicating that the setting has
changed and must be memorized.
26 To memorize the setting press and hold the reset button D
for about 5 seconds until all the three lamps A briefly blink
simultaneously.
27 To reset the boiler to the normal operation turn it off and
on by the main switch and radiator temperature control C.
The boiler automatically resets to its normal operation
after 10 minutes if the above reset operation is not
performed.
SERVICING