John Lewis JLBIGH601 Wiring Diagram, Fault Finding, Preliminary Electrical Systems, Check, No Yes

Models: JLBIGH601

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Wiring Diagram

Wiring Diagram

L

1

N

 

 

 

 

 

 

 

 

 

 

 

 

1. IGNITOR SWITCHES

 

 

 

 

 

 

 

 

 

 

 

 

2. IGNITOR UNIT

 

 

 

 

220

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

240

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fault Finding

Brown Blue

Blue

Green Yellow

START

Preliminary Electrical Systems

Isolate appliance

Check

and carry out:

A:Earth Continuity check.

Brown Green

Yellow

NO YES

Carry out:

 

Electricity supply

 

should now be

 

 

B: Insulation check.

 

 

 

 

satisfactory.

 

 

 

 

Has inlet fuse blown?

NO

YES

Inlet wiring faulty. Rectify any fault.

Isolate appliance and carry out:

B:Insulation check. Rectify any fault including replacing fuses as necessary.

A. EARTH CONTINUITY CHECK - Appliance must be electrically disconnected - meter set on W (Ohms) x 1 scale and adjust zero if necessary.

a)Test leads from any appliance earth point to earth pin on plug. Resistance should be less than 0.1 W (Ohm), check all earth wires for continuity and all contacts are clean and tight.

B. INSULATION CHECK - Appliance electrically disconnected, all switches ON.

a)meter set on W (Ohms) x 1 scale.

Test leads from L to N in appliance terminal block. If meter reads «0» then there is a short circuit.

b)meter set on W (Ohm) x 100 scale.

Repeat test with leads from L to E. If meter reads less than ¥ (infinity) there is a fault.

NOTE - Should it be found that the fuse has failed but no fault is indicated - a detailed continuity check (i.e. by disconnecting and checking each component) is required to trace the faulty component.

It is possible that a fault could occur as a result of local burning/arcing but no fault could be found under test. However a detailed visual inspection should reveal evidence of burning around the fault.

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John Lewis JLBIGH601 Wiring Diagram, Fault Finding, Preliminary Electrical Systems, Check, Ignitor Switches, Ignitor Unit