SERVICING
30
Mini
--- Installation & Servicing
37 BURNER REMOVAL AND CLEANING
1 Disconnect the electrical supply.
2 Remove outer and inner casing (refer to frame 36).
3 Undo the screws A and remove the combustion chamber
panel B.
B
A
4 Disconnect the electrodes leads.
5 Undo the four screws C placed at the right and left sides
of the burner and extract it.
C
6 Brush off any deposits that may have collected on the
burner, ensuring that the flame ports are unobstructed.
Note: brushes with metallic bristles MUST NOT be used.
7 Inspect the spark and detection electrodes. Ensure they
are clean and in good condition; replace if necessary.
8 Check the spark electrodes gap is correct.
4 mm (5/32”)
Ignition
Detection
Male
Female
10 mm
Burner blade
(3/8”)
Mini C24
,
Mini C28
,
Mini S24
,
Mini S28
4 mm (5/32”)
Ignition
Detection
Male
Female
10 mm
Burner blades
(3/8”)
10 mm
(3/8”)
Mini C32
9 Check that the spark and detection electrodes leads are in
good condition and renew as necessary.
38 BURNER PRESSURE CHECK
After any servicing, reference should be made to:
--- Table 2 and Table 3 (or the data plate) which quote details
of the burner pressures.
If the burner pressures are incorrect ensure the inlet pressure,
with the appliance running, is correct (refer Table 1).
If the burner pressures require adjustment refer to frame 29
“To adjust pressures”.
If the appliance still does not operate correctly refer to the
appropriate fault finding chart.
39 CLEANING THE HEAT EXCHANGER
1 Open the combustion chamber as explained in steps 1 to
3 of frame 37.
2 Place a plastic sheet or similar beneath the heat
exchanger and remove all visible loose deposits from the
heat exchanger fins, using a suitable brush.
S
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