Page 270 - Electrician - 1st Year - TP - Urdu

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Troubleshooting chart for washing machine

Sl.No. Complaints Causes and remedies

1 Machine not Swiching “ON” I Check for open connection and rectify the same

II Check the incoming supply

III Check the fuse on the machine

IV Check the motor windings and repair of minor repairs can be
carried out, if needed send it for repairs/rewinding for internal
open circuit.

V Check the speed governing starting switch, repair or replace
with a new switch.

2 Water not filling up in the washing drum I The inlet pipe is chocked. Open the inlet valve, clean it and
reconnect it using water proofing teflon tape

II Check incoming water supply and replace the same.

3 Water does not drain out of the I Check the outgoing valve, clean and reconnect it with proper
wash drum
water proofing

II Check the outgoing pipe for any kinks - repair or replace the
same.

4 Machine becomes ‘ON only for a very I The timer setting may be incorrect;set the timer properly.

short duration and then switches off

II The speed governor switch may be faulty; dismantle the motor
and repair the same, If possible, or replace the starting speed
governor swivel mechanism.

III The running winding impedance could have increased due to
open circuit and insulation failure. Check the running winding
impedance and rewind the motor, if necessary.

5 The machine is noisy I Check the balancing of the drum and correct the same if found
off balance.

II The motor shaft pulley/drum driver pulley may be loose,tighten
the same.

III The belt of the machine drive might have loosened thus giving
play.

IV Check the bearings of the motor, replace the worn out or grease
the same using the recommended grease.

V Check all rubber bushings that are used in the machine for
absorbing mechanical vibration, and replace, if found spoilt or
missing.

6 When power is swiched ‘ON’ motor is I Check if the motor shaft is rotating; the pulley to the hum is

not working heard but the wash agitator does motor shaft may be loose,

tighten the same.

II Check the belt tension. If the belt has become loose tighten
the same by the tension adjustor or replace the belt with a
new one.

III Check if the agitator of the machine is sufficiently loose,i.e.
the bearing if free and not tight; carry out lubrication of the
bearing if necessary.

7 When the machine control switch is I Isolate the machine from the supply, isolate the motor terminals

switched ‘ON’ the fuse blows and check if there is an insulation failure/short circuit in the

motor or in the wiring of the machine.

II If short circuit/insulation failure in the motor, rewind the motor.

III If short circuit/insulation failure is present in the rest of the

machine, trace the same and remove the short circuit.

1.11.97 ‫( ﻣش‬2022 - ‫ ﻧظر ﺛﺎﻧﯽ ﺷده‬NSQF) ‫ اﻟﯾﮑﮢرﯾﺷن‬:‫ﭘﺎور‬ 248