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CONNECTION TO T3 OVER HEAT THERMOSTAT AND 12V OUTPUT FOR BLOWER LID

FUEL PUMP

CONTROL PANEL CONNECTION

MAIN POWER CONNECTION (12V DC)

FUEL PIPE

COMBUSTION FAN OUTPUT

SPARE FUSE

COMBUSTION AIR INTAKE

NEGATIVE GROUNDING CABLE

T3 OVERHEAT THERMOSTAT AUTO-RESET

FLY LEAD USED FOR CONNECTING 95 TO OPTIONAL BLOWER LID

CIRCUIT BOARD

BURNER HEAT SHIELD

GLOW PLUG PROTECTION KIT

THIS LINK BETWEEN CONNECTIONS 1 & 2 MUST BE IN PLACE FOR THE UNIT TO OPERATE

FUEL PUMP OUTPUT (CONNECTED TO THE GLOW PLUG PROTECTION KIT)

GLOW PLUG OUTPUT (CONNECTED TO THE GLOW PLUG PROTECTION KIT)


FUEL NEEDLE

CONNECTIONS 4&6 TO BE USED WHEN INSTALLING A MAGNETIC VALVE

1

2

3

4

5

6

POSITIVE CONNECTION FOR GLOW PLUG

COPPER FUEL PIPE (CONNECTED TO FUEL NEEDLE)

GLOW PLUG

T4 THERMOSTAT RETAINING PLATE

T4 THERMOSTATIC ELEMENT

NEGATIVE GROUNDING CABLE

GASKET FOR T4 THERMOSTAT

FUEL NEEDLE RETAINING PLATE

BOLT TO SECURE GLOW PLUG GROUNDING CABLE AND RETAINING PLATE

GLOW PLUG RETAINING PLATE

BOTTOM LOCK PLATE


MOTOR (TO POWER COMBUSTION FAN)

SPARE FUSE

BOTTOM LOCK PLATE

GLOW PLUG PROTECTION KIT

COMBUSTION FAN HOUSING

EXHAUST OUTLET

COMBUSTION AIR INTAKE

FUEL PUMP

PLUG ON FLY LEAD TO CONNECT TO OPTIONAL BLOWER LID

CIRCUIT BOARD


6

Remove the circuit board retaining screw.

5

Remove the plugs as follows, the glow plug output connection plug, the combustion fan output plug, the negative grounding cable, the fuel pump output plug, the T3 over heat stat and blower lid output plug and if the magnetic valve is fitted the plug this has been connected to.

4

Remove the burner pot retaining spring plate.

Remove the burner heat shield and then the bottom lock plate.

Remove the burner heat shield retaining nuts.

Remove the control panel connection plug, (grip all coloured cables firmly so as not to pull on single cables.)

3

2

1


9

Remove the T4 thermostat and retaining plate.

12

Remove the screw which holds the negative grounding cable and glow plug retaining plate.

8

Remove the screw holding the T4 thermostat retaining plate.

11

Disconnect the glow plug connection cable.

7

Move the circuit board to one side to allow access to the thermostat, glow plug etc.

10

Remove the gasket which seals the T4 thermostat.


15

Remove all three PCB retaining plate screws.

18

Extract the fuel needle far enough to be able to remove the burner assembly. (If the fuel needle is partially or fully blocked with carbon then remove and replace.)

14

Remove the glow plug.

17

Remove the screw which holds the fuel needle retaining plate.

13

Remove the glow plug retaining plate and negative grounding wire.

16

Remove PCB retaining plate


21

Lift and remove heat shield from burner.

24

Remove the flame spreader.

20

Remove the burner by tilting it as shown.

23

Using a flat blade screw driver compress the retaining spring to release the flame spreader.

19

(View of the partially extracted fuel needle.)

22

Using a flat blade screw driver compress the retaining spring to release the flame spreader.


Remove the quarts bottom carpet. Clean the carbon deposits from the burner. If the carbon can be removed from the quarts carpet with out damaging it then reinstall, if not then replace it with new.

Remove the quarts bottom carpet retaining spring.

Reassembling of the Wallas 95D ceramic hob. Once the fuel needle has been checked and replaced if necessary, the burner cleaned and the quarts carpet cleaned or replaced, then the service is complete and the unit is now ready for reassembling. To do this follow the instructions 1-26 in reverse order, being very careful to replace all components, wires etc. in the correct place. Failure to do this could damage the unit. If any part of these instructions are not clear or you do not understand them, then please do not hesitate to contact your Wallas distributor. NOTES Do not attempt to clean the fuel needle. Always replace if there is any sign of carbon residue inside it. U Whilst reinstalling the flame spreader back in to the burner, make sure the two spring retaining clips have returned to there original U position, holding it securely in place See fig 22+23. If there are any signs of deterioration on the surface of the glow plug then replace it whilst reassembling the unit, see fig 14 U Check all the gaskets for any damage or deterioration that may effect the operation of the unit if any are suspect change them. U When tightening the nuts that hold the burner heat shield and the bottom lock plate to the burner chamber box, check that there is U no play between them and there is no gaps between the bottom lock plate and the burner chamber box. Once the unit has been reassembled, double check every cable nut screw and component is in the correct position before refitting. U CAUTION; When reinstalling the unit check all fuel pipe connections are tight, an air leek into the pipe will cause starting or U combustion problems.

26

25


Wallas 95 service manual  

OUTPUT OUTPUT NECTED NECTED PUMP PUMP OVER MUST USED NEGATIVE SPARE PLACE CABLE PLUG PLUG PLUG PLUG FUSE FOR AND FOR FOR LEAD HEAT HEAT SHIE...

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