Service & Replacement Of Parts - Potterton Kingfisher Mf 40 Installation & Service Instructions Manual

4. Service & Replacement of Parts - Page 24
Read these:
WARNING:
IMPORTANT:
IMPORTANT:
Flue gas analysis points are provided as follows:-
Notes on Cleaning Boiler Components
Heat Exchanger
After performing operations 4.1, 4.6 & 4.8 place a sheet of paper under the heat exchanger then using a flat blade
tool (Part No. 907736), scrape the flueway fin surfaces in a downward movement. This will ensure that most of the
deposits will be collected on the paper.
Burner
Brush the burner top and check that the flame ports are clear. Any blockage may be removed with a fine wire brush.
Turn the burner upside down and tap gently to remove any debris (Protect the electrode).
Electrode
If the electrode requires cleaning wipe the surface using a solvent such as methylated spirits.
Main Injector
Omit this operation if the gas rate is correct, otherwise clean by blowing through. Do NOT clear the injector with a pin
or wire.
Fan Assembly
Examine the fan impellor and carefully clean if necessary using a soft brush.
Flue
Inspect the flue terminal and flue/air tube for blockage and integrity, rectify if necessary.
24 Service & Replacement of Parts
Supplied By www.heating spares.co Tel. 0161 620 6677
To ensure continued efficient operation of the appliance, it is recommended that it is checked
and cleaned as necessary at regular intervals.
The frequency of servicing will depend upon the particular installation conditions and usage
but in general once per year should be adequate.
It is the law that any service work must be carried out by a competent person who is
C.O.R.G.I. Registered.
Before servicing, fire the appliance and check that the flames are blue. Yellow flame and
excessive lifting indicate poor combustion.
Before commencing work turn the temperature control knob to 'O' Stand-by and allow the
appliance to cool, isolate the electricity supply.
If the gas valve is to be removed turn off the gas supply at the appliance service cock.
Always test for gas soundness after completing any servicing of gas carrying components
and carry out functional checks of controls.
Ensure that the outer white case is correctly fitted and that the sealing strip fitted to the door
is forming a tight seal with the boiler casing.
RS Models: Either side of the flue elbow.
CF Models: On the Draught Diverter.
CF Models
Flue Gas
S ample P oint
RS Models
Flue Gas
S ample P oints
Publication No. 560100