Electrolux U01317 EHG 678W Instruction Booklet - Page 17

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Fault Finding

Preliminary Electrical Systems Check

Blue

Brown

Green

Yellow

Blue

Green

Brown

Yellow

START

Isolate appliance

and carry out:

A: Earth Continuity

check.

YES

Carry out:

C: Polarity check.

Has inlet fuse blown?

YES

Inlet wiring

faulty.

Rectify any

fault.

Isolate appliance and

carry out:

B: Insulation check.

Rectify any fault

including replacing

fuses as necessary.

PLUG (with cover removed)

Earth Wire

( )

Green/Yellow

Neutral Wire

Blue

Carry out:

D: Resistance to

Earth check.

A. EARTH CONTINUITY CHECK -

Appliance must be electrically

disconnected - meter set on

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

wires for continuity and all contacts clean

and tight.

B. INSULATION CHECK - Appliance

electrically disconnected, all switches ON.

a) meter set on

Test leads from L to N in appliance

terminal block. If meter reads «0» then

there is a short circuit.

b) meter set on

Repeat test with leads from L to E. If meter

reads less than

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.

SOCKET

(face view)

( )

Electricity supply

should now be

satisfactory.

(Ohms) x 1

(Ohm), check all earth

(Ohms) x 1 scale.

(Ohm) x 100 scale.

(infinity) there is a fault.