Supplied By www.heating spares.co Tel. 0161 620 6677
Manual No. 405/0101
LIST OF CONTENTS 3
8.
LIGHTING INSTRUCTIONS..........................................................................................................................................29
9.
REPLACEMENT OF PARTS ........................................................................................................................................30
9.1
General Access Prior to Replacement of Parts ...................................................................................................30
9.2
Reassemble the Boiler After Replacement of Parts ............................................................................................30
9.3
To Replace the Spark Electrode or Electrode Lead ............................................................................................31
9.4
To Replace the Pilot Injector ...............................................................................................................................31
9.5
To Replace the Pilot Burner.................................................................................................................................32
9.6
To Replace the Main Burner................................................................................................................................32
9.7
To Replace the Overheat Cut-Off Device ............................................................................................................32
9.8
To Replace the Fan .............................................................................................................................................33
9.9
To Replace the Air Flow Pressure Switch ...........................................................................................................33
9.10 To Replace the Main Burner Injector...................................................................................................................33
9.11 To Replace the Boiler Thermostat .......................................................................................................................34
9.12 To Replace the Combustion Chamber Insulation Panels....................................................................................34
9.13 To Replace the Heat Exchanger..........................................................................................................................35
9.14 To Replace the Pump Overrun Thermostat.........................................................................................................35
9.15 To Replace the Gas Valve...................................................................................................................................35
9.16 To Replace the Gas Valve Solenoids ..................................................................................................................36
9.17 To Replace the Ignition Circuit Board ..................................................................................................................36
9.18 To Replace the Pump..........................................................................................................................................36
9.19 To Replace the Diverter Valve Head ...................................................................................................................37
9.20 To Replace the Pressure Gauge .........................................................................................................................37
9.21 To Replace the Safety Valve ...............................................................................................................................38
9.22 To Replace the By-Pass Valve ............................................................................................................................38
9.23 To Replace the Test Switch.................................................................................................................................39
9.24 To Replace the Neon Indicator ............................................................................................................................39
9.25 To Replace the Expansion Vessel.......................................................................................................................39
9.26 To Replace the Programmer (if fitted) .................................................................................................................40
10. WIRING DIAGRAMS .....................................................................................................................................................41
11. FAULT FINDING GUIDE ...............................................................................................................................................43
12. EXPLODED VIEW.........................................................................................................................................................44
13. SHORT LIST SPARE PARTS .......................................................................................................................................45
If you have any reason to complain of any shortage of components listed in Figs 6, 7 or 29, supply a list of the item(s)
concerned, boiler model, your name, address and any information which may help us avoid further error.
Address for return:
Supplies Manager
Potterton Interpart.
Brooks House
Coventry Road
Warwick. CV34 4LL
Tel: 0926 493471
The boiler model and serial No. are given on the Serial No. label on the front of the control box.
The boiler data label is on the left hand side of the chassis next to the gas valve.
