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Grundig um9140 not revolving but power supply perfect

Intermittent running of motor . Power supply A. 1. . N

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By powersupply i assume you mean the light is lit round speed switch... is light flashing and motor not running ?/I have repaired a similar fault it was motor brush capacitor not soldered securely....if you are not an electrician or of an electrical trade and cannot safety test machine then please do not try repiring

Posted on Mar 19, 2014

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  • Paul Fogarty
    Paul Fogarty Mar 22, 2014

    I just had the same problem, power supply was fine but motor not revolving. i dismantled the unit and discovered the brushes connection to rotor was coated in black carbon. i cleaned up this carbon by revolving rotor and using 180 wet/dry paper. Upon testing the machine it ran in all speeds but very quickly blackened up again. is this a brush issue or power?

  • Conor
    Conor Apr 07, 2014

    How did you dismantle the top of the mixer

  • pc6493 Apr 10, 2014

    you need to peel back the chrome strip round the centre... cut at switch and peel back to reveal 4 countersunk screws

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This seems to be my problem too or poss the the werm gear .. Trying to find a manual that will show me how to take apart does any one know of one ?

Posted on Oct 30, 2015

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Posted on Jan 02, 2017

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1 Answer

What direction should a Hobart H600 mixer rotate?


Check Rotation (Three-Phase Machines Only)
Three-phase machines must be connected so the planetary rotates in the direction of the arrow on the
Drip Cup. To check rotation:
Set the gear shift lever on 1.
Apply power to the mixer, set the Electro-Mechanical Timer on HOLD; or, if equipped with a
Programmable Timer Controller, set it on [ -- : -- ]. With the Bowl Support all the way up,
momentarily run the machine by pushing the START and then STOP buttons.
If rotation is incorrect, DISCONNECT ELECTRICAL POWER SUPPLY and interchange any two
of the incoming power supply leads.

Oct 12, 2017 | Hobart Food Mixers

2 Answers

I have Hobart D300 mixer which operates at 220V, 3phase supply and whereas the facility has 208V, single phase supply. Is there any recommended phase converters available for this product. Thanks


Hi Bill
I may be wrong here......
But I've been around Electricity for a long time.
Have Never seen a device that does phase conversion.
A Building site or home will either have Three Phase or Single Phase Power Available
BUT...A portable (Hired) generator could be "three phase" and you could use any one of those phases individually or all three phases.

I have 3 Phase supply to my house!
But I use 230 volt Single Phase for appliances.
My Bore Pump uses a 3 Phase Motor,
(so with a voltmeter it would read about 440 vAC to the pump motor).
Some Further Info:
A GENERATOR is basically a motor used the opposite way. Rotate a motor and it Generates.
The Phases refer to the THREE Windings in the supplying generator in your suburb.
A Large Magnet passes each winding in sequence giving you the three ripples in the supply.
Our houses can choose to have 1 Phase or Three Phases from the street when you set up your electric supply.
So... to confirm, look at the wires on the supply poles to the premises. Usually three in our area (Oz)
Most people are not aware that a car Alternator is actually three phase. The Rotor is the magnet that rotates.
The only difference with an Alternator is that each "Phase" is connected to 2 Diodes (6 total) to convert the three phase to DC to charge the vehicle.
The Regulator controls the voltage to the Rotor, thereby controlling the output.
So.... An Alternator could in theory supply 3 Phase in a mobile generator. Custom Made. Constant speed would determine the frequency of 50Hz or 60Hz.
Not sure what country you are in

Hope this Helps or gives you food for thought!


Three phase electric power

Jul 08, 2015 | Hobart Food Mixers

2 Answers

Motor not spinning in hobart 60 qt mixer


Check manually after disconnecting the motor if this is jammed. If so the motor must be reset as the bearings are faulty and so the rotor seems to get stuck with the coil core.
Also if there is high drain with heat it is possible that the coils are faulty and might need an insulation failure test.

Nov 22, 2011 | Hobart H600 Stand Mixer

1 Answer

Ksm90. Mixer will not run. Tested for power at contacted had power.can I bypass phase board for full motor run. How many ohms should I be getting on field. Ps brushes looked good and long.


be sure motor brushes are inserted in the holders correctly; as 1 side of carbon brush has a shaved corner; and must be inserted as such. you will need a flashlight to shine into holder to see the shape of holder. i've seen this many times.

May 05, 2011 | KitchenAid KSM90 Ultra Power Series Stand...

1 Answer

Stop working, I just brought it on 1 month ago.


You have to trace from the power cord to the motor the supply .You will need to see where the problem is to cut power .

it can be a reset switch( if available in the unit), the main switch control.
if not it can be the motor, make sure the bowl locks well to latch the safety switch as some models the motor wont spin otherwise.

Sep 29, 2010 | KitchenAid KP2671 Professional 6 Series...

1 Answer

The mixer motor starts and stops, it will not continue running on any speed. By playing with the speed selector you can get it running sometimes but you cannot keep it running if you change speeds.


Here is how your speed control works:

Speed Control
The speed control of the mixer is attained through the use of a governor assembly mounted at the rear of the control plate assembly.
The electrical circuit is made and broken by the action of the fly ball governor revolving against the control plate.
When the switch lever is moved to an ON position, the position of the control plate with respect to the governor is changed by the action of the switch lever.
Thus, when the control plate is set close to the governor, a relatively low speed of the motor causes the governor to make or break the mixer’s electrical circuit through the control plate.
When the control plate is set farther away, a greater motor speed is required before the governor starts breaking the circuit.
The action of the governor is such that the speed of the motor will remain constant for a given setting of the control plate within certain loads.
After certain loads have been exceeded, the speed of the motor will drop to meet the torque requirements of the given load.
Speed is controlled by the governor and the control plate in conjunction with the phase control.

TRIAC RMS VOLTAGE
BOTH CONTACTS OPEN - 40 VOLTS
ONE CONTACT OPEN - 80 VOLTS
BOTH CONTACTS CLOSED - FULL VOLTAGE
NOTE: The triac regulates the power the motor sees depending on control board contacts.
A device called a triac is a part of the phase control circuit.
This device determines the amount of power the motor sees dependent upon the condition of the control board contacts.
If both contacts are open, about 40 volts RMS is applied to the motor and about 80 volts is applied when either contact is closed and the other is open.
When both contacts are closed, the triac is full on; consequently, full power is applied to the motor. In this way, the speed is controlled.
If the mixer motor begins to run too fast for a
particular speed setting, one or both contacts open, which cuts back on the voltage the motor sees, thus slowing it up.
If the motor operation becomes too slow, one or both contacts will close, applying the needed voltage to the motor to sufficiently increase motor speed.
This is always accomplished through the triac.
The control plate contacts control the triac, and in turn, controls the amount of power supplied to the motor.

The control Plate for your mixer is PN
W10119326
http://www.marbeck.com/mixers_kitchenaid_parts.html

If your not good with tools / meters or tedious repairs do NOT attempt this yourself.
The service manual for your mixer can be found here
http://www.f-ems.com/download/DownLoad.aspx?DocsID=082009012917

and is:
LIT4177310-C


Mar 14, 2010 | KitchenAid KSM103 Professional 5 Series...

1 Answer

The mixer will not start. Power gets to the unit and the blade does turn manually.


Hi - I assume you mean to say that the motor turns on, runs in all speeds but no power is being transferred to the planetary head and beaters?

If this was preceeded by some intermittent run conditions like occasionally skipping beaters and some louder than normal or different run noise then it's likely that the nylon Worm Gear has lost teeth and is no longer making contact with the motor gear. It is part of an assembly which is directly coupled to the motor. Disassembly is required to get at this part and some mechanical skill to replace it. If the mixer's a few years old and/or gets a lot of use, the gear grease should be replaced too. For the gears and other parts, including the grease - check out http://www.goodmans.net/get_dept_933.htm They seem to have just about every part needed and fair pricing. Appliance Parts Pros is another source of parts and diagrams. Warning - mixer disassembly is a medium complexity task and could ruin your day...

Good luck!

DZII

Jan 02, 2010 | KitchenAid K45SS Classic Stand Mixer

2 Answers

The beaters won't go around. The motor is running


I can't solve this problem, but mine just died doing the very same thing. Motor is running, the revolving base is turning, and the beaters are just sitting there. Ruined an entire batch of divinity!

Aug 30, 2009 | Sunbeam Heritage 2346 Stand Mixer

1 Answer

KitchenAid 325 Heavy Duty Stand Mixer runs with low power & clicking noise


well there is a couple of things to try
1. see if kitchenaid sells the motor or
2. if a local appliance parts store can get the motor
this is the only thing you can do about the motor , the wires in the motor are shot and it will need reconstructing in the wireing, that is why it won't run fast and strong , because the wires have been heated up to much and now they can't create a strong enough magnetic field
but to replace the motor shouldn't be to hard just a little patience
if you need any more help just let me know!

electech

Oct 22, 2008 | KitchenAid KSM5PS Heavy Duty Stand Mixer

2 Answers

Hobart A-200 Motor Direction


No, do not swap hot and N.

First, verify rotation. As the attachment shaft rotates, it should push the engagement pin into the keeper slot. Looking down on top of the mixer, the planetary should rotate clockwise.

If the unit runs backwards, does it start slow? Can you get it to run either way by giving it a push start before turning on the power? If so, your start switch is not working properly. (Which is my guess) Check your capacitor.

There is mechanical and electronic start switches. (Metal arms and a contact or a little gold rectangular metal can.)

Check it out and let me know what you find -- Mike

May 19, 2008 | Hobart A200 Stand Mixer

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