Wiring Diagram
N
1
L
2201 
2
3
0
4
2
1.TAPS IGNITOR SWITCHES
2.IGNITOR UNIT
Fault Finding
Preliminary Electrical Systems Check
Brown Blue
Blue
Brown Green Yellow
START
Isolate appliance and carry out:
A:Earth Continuity check.
PLUG (with cover removed) | SOCKET |
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(face view) | ||||
Earth Wire | ( | ) |
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Green/Yellow | E ( | ) | ||
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Neutral Wire |
| FUSE |
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Blue |
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| N |
| L |
NO | YES | Carry out: | Carry out: |
| Electricity supply | |||
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| D: Resistance to |
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| should now be |
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| C: Polarity check. |
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| Earth check. |
| satisfactory. | |||
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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 Ω (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 Ω (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 Ω (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 Ω (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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