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  Repairs and Remedies of Hair Dryer

Introduction to Repairs and Remedies

 

Problems

Causes

Test & remedy

Unit provide no heat at any position and/or motor does not operate

A. Blown of fuse

B. Broken wire/loose connection in power cord or in the circuit.

C. Defective switch.

D. Open circuited temperature control/defective thermostat.

E. Open circuited Winding.

F. Short circuited windings.

A. Replace with proper capacity fuses.

B. Test all wiring connection and cord set for its continuity. Solder the broken wire or change the cable/power cord.

C. Test the  switch  for  proper operation. If faulty, replace the switch.

D. Test the temperature control/Thermostat. If faulty, replace it.

E. Solder the joints of the open circuited end of the winding; if not possible, rewind.

F. Rewind.

Unit operates intermittently.

A. Loose connections.

B. Intermittent switch operation (i.e. it turns one time and refuses to operate the next time)

A. If you locate any such loose connection, reconnect them. Replace the temperature control or thermostat if all connections are tight and intermittent cycling continues.

B. The very easy way to clean the switch is to spray a cleaning liquid into the switch, work the switch several times, and then recheck the switch. If it still does not work correctly, replace it.

 

Unit provides no heat at any position, but motor runs.

 

A. Leads of heater open.

B. Opening heater circuit.

A. Test the heater leads for porper connections.

B. Test the heater contacts on thermostat for contamination. Test the fuse link and heater element continuity. The thermostat mut be in closed position before a continuity check can be made. Allow the hair dryer to cool so that the contact could be closed.

 

 

Motor does not operate but heater operates.

A. Defective switch.

B. Bent impeller/fan.

C. Defective thermostat.

D. Open circuited Windings.

E. Improper connections.

A. Change the switch.

B. Test the bearing and fan/ impeller for bent. Lubricate the bearings, if required, with very small of light oil.

C. Test the thermostat for proper cut off. Also check the thermostat or temperature control for continuity.

D. Solder the joints of the open circuited winding. If it is not possible, rewind.

E. See that the connections are

proper as per the connection diagram.

 

Appliance is noisy.

A. Improper mounting

B. Improper fitting of impeller

C. Warped impeller/fan blade

D. Loose parts in blower compartment.

A. Test the tightness of the motor mounting.

B. Test and fit the impeller on the shaft in proper position.

C. Test for a warped impeller or fan blade. If faulty, replace it.

D. Re-fastern them.

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