
14.0
Fault Finding
42
Burner output modulates
until set temperature is
reached.
Burner goes out.
Fan stops.
Pump continues to run
for 3 minutes.
(room thermostat open)
Operation
sequence correct
Go to section ‘G’.
YES
NO
YES
YES
YES
CH temperature higher
than set point of CH
thermostat control. When
CH temperature decreases
cycle continues.
Central Heating -
Follow operational sequence (Continued)
Fan runs at max speed.
Air pressure switch proved.
Spark at ignition electrodes
for up to 10 seconds.
neon illuminated
Burner extinguishes after
10 seconds.
neons flashing
Go to section ‘D’.
Turn the selector to reset.
If regular resetting is
required or appliance still
does not operate
investigation is necessary.
Go to section ‘J’.
NO
YES
neon flashing
Go to section ‘E’.
neon flashing
Turn selector to the reset
position. If the neon does
not extinguish go to
sections H and K.
Change main PCB.
Go to section ‘F’.
neon flashing
Go to section ‘I’
YES
YES
NO
NO
NO
YES
YES
NO
YES
NO
neon flashing
NO
Does the burner remain lit ?
NO
Continued from
previous page
YES
Содержание Performa 28i
Страница 47: ...16 0 Notes 47 ...