Zanussi ZGS 782 ICT Libretto di istruzioni - Pagina 24

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Zanussi ZGS 782 ICT Libretto di istruzioni

A. EARTH CONTINUITY CHECK

Appliance must be electrically disconnected - meter set on W (Ohms)

x 1 scale and adjust zero if necessary.

— 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 clean and tight.

B. INSULA

TION CHECK

B. INSULA

B. INSULATION CHECK

B. INSULA

TION 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.