Wiring Diagram
L
1
A | 0 | 2 |
3
4
220/240
5
6
B
N
A. IGNITOR SWITCH
B. IGNITOR UNIT
Fault Finding
Preliminary Electrical Systems | PLUG (with cover |
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Check |
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| Earth Wire | ( | ) | ||
Brown | Blue |
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Green | START |
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| FUSE | |||
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| Yellow | Isolate appliance |
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| A: Earth Continuity | Neutral Wire |
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SOCKET
(face view)
E(
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NL
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Brown |
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| Yellow |
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| Electricity supply | |||
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| NO | YES | Carry out: |
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| D: Resistance to |
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| C: Polarity check. |
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| Earth check. |
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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 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 ý (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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