Home appliance diy

General appliance repair tips.

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Please read the smallprint below ,before accessing this site.

Use caution when repairing electrical appliances ,with the machine always unplugged from the mains supply.

I have been repairing domestic appliance for over 25 years and my knowledge has been recorded on this site .

The information in this site is free for anyone to read as you wish as long as you read and understand the smallprint.

These pages are demonstrations of how i repair various faults.

If you have a problem with your machine let me know and i will try to do a page on it or if you need advice

If you find any bugs on this site please let me know.

Contact me at Appdiy@yahoo.co.uk

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Home Appliance Diy

Hotpoint Indesit motors image one

UNPLUG FROM MAINS.
Remove the rear access panel and the motor will be fixed to the bottom of the drum,wiggle and pull each of the wires to check they are secure.If the module is located at the bottom left of the machine , looking from the rear , then its got Indesit controls so it will have an indesit motor.


image two

Remove the belt,unplug the wires and unscrew the two bolts,then pull the motor it should slot forward ( it may need a bit of a tap ) and can now be removed from the machine.


image three

The majority of problems are down to worn brushes.The brushes are located on the rear of the motor , remove the two screws the brushes can be removed and inspected.There are lots of different types so i took the old ones into the shop and got the right ones.


image four

The new brush is on the left and the worn brush is on the right.A worn brush can cause drum not to turn,or the machine will lock the door and do nothing, or will pump for a second then stop then pump again .I always check the brushes.


image five

This is an 3 phase motor.Look no brushes.Can`t do much with these.The wiring connections are listed below .


image six

This is another type of motor.The two red wires shown in the picture are the tacho wires,when the motor turns it sends a signal down these wires and back to the pcb.
If these break then the motor will either go straight into a spin or the motor will try to turn quicker than normal then stop then try again.Because the pcb thinks the motor isn`t turning and sends more power ,to get it turning.


image seven
Another type of motor.


A circuit should be present through the windings and the field tap connects to the field windings to give the fast spins , if the tacho has failed the motor should turn fast then stop,as the pcb doesn`t know the motor is turning, and repeat or an error code .

image eight

This is the Indesit motor( there are a few types of motor so i look for the tacho wires , and the armature wires go to the brushes you can determine which type it is and its not what it says on the machine).Taking 1 and 2 as the tacho wires , it`s easy to , determine the rest.The pins are numbered 1 to 7.The reading, when measured with a multimeter,is also listed.

Pins 1 - 2 Tacho wires.
Pins 3 - 5 Full field.
Pins 6 - 7 Armature.
Pin 4 Is the tapped field.


image nine

This is the Hotpoint fhp motor (there are a few types of motor so i look for the tacho wires and the armature wires go to the brushes,you can determine which type it is and its not what it says on the machine).Counting from right to left the pins are numbered 1 to 7.The reading, when measured with a multimeter,is also listed.

Pin 1 - 2 Tacho.
Pins 3 - 4 Field
Pins 5 - 6 Armature.
Pins 7 Field tap.


image ten
TESTING FHP CESET BOSCH
TACHO 135 ohms 68.7 ohms 200 ohms
CENTER TAP FIELD 0.47 ohms 0.41 ohms 0.65 ohms
MAIN FIELD 1.26 ohms 1.25 ohms 1.3 ohms
ARMATURE 1.5 ohms 1.78 ohms 2.0 ohms


image eleven

This is the 3 phase motor .Counting from right to left the pins are numbered 1 to 8 pin 8 isn`t used . The readings, when measured with a multimeter,are listed in the table below.

TESTING READING
MOTOR PROTECTOR 1 - 2 0.0 ohms
WINDING 3 - 4 6.4 ohms
WINDING 3 - 5 6.4 ohms
WINDING 5 - 4 6.4 ohms
TACHO 6 - 7 120 ohms


image twelve

To fit the belt , place the belt around the motor and on the pulley until the belt goes tight.


image thirteen

Then turn the pulley while holding the belt untill the belt stretches and slots into place.Make sure when the drum is turned , a couple of times , that the belt lines up central on the pulley.