Often we find dynamo rotation on the washing machine is not strong or weak. While the dynamo is not jammed and the capacitor is also OK, while the dynamo wire still looks smooth or there are no burn marks.
That is because there has been a short or short connection to the dynamo windings and the most common ... g occurs at the meeting / stack between the main winding and the starter. To make sure we can know it by measuring the resistance in each coil then adding it up. If the result of the resistance of the main winding and starter is not suitable with the measured in the multitester, it can be ascertained that the dynamo is already short / short.
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| Examples of cable connections on the washing machine dynamo and winding direction for each pole. Click image to enlarge |
As we know dynamo washing machine / type has 2 turns, main and starter. Then one of the bases or ends of the two windings is connected together. Generally the washing machine is marked with BLUE or BLACK cable which is directly connected with fuse or AC power cord. While we are marking the main windings with BROWN cable. And the tip of the starter coil to our capacitor is marked with an ABU2 cable. So the cable coming out of the dynamo is 3. BLUE, BROWN and ABU2.
The steps of measurement / checking are as follows:
1. Measure the resistance between BLUE and BROWN cable. Suppose the result is 70 ohms.
2. Measure the resistance between BLUE and ABU2 cables. Suppose the result is 120 ohms.
3. Measure the resistance between BROWN and ABU2 cables. If the dynamo in good condition the measured results in the multitester should be 70 ohms + 120ohm = 190 ohms. If the measured value is much smaller, then it can be ascertained that the dynamics are short. Of course this will affect the rotation power and dynamo will heat up quickly. This example is an example of a dynamo winding in the drying section.
4. As for the washing part dynamo, the resistance distance between the two windings must be the same. Because the two windings are the number and the amount of wire used is the same. Because both windings can be the main winding or starter depending on the direction of rotation or the incoming power source on both cables (CHOCOLATE / ABU2). That's why both CHOCOLATE and ABU2 cables all go to the capacitor, so that the dynamo can rotate 2 directions. If the power source goes into the dynamo CHOCOLATE cable it will spin left and if it goes to ABU2 it will be the opposite. This is set by the timer.
Example: if between BLUE and CHOCOLATE cable measured 70 ohms then between BLUE and ABU2 cable must be 70 ohms also. So if we measure BROWN and ABU2 cables, a good dynamo will be measured 70 ohms + 70 ohms = 140ohm.
For more details, it can be seen in the scheme of how to roll the dynamo washing machine that I posted a few days ago.
Such is the simple trick to check the dynamo condition of the washing machine or the like, for example: blowers on air conditioners, water pumps, fans etc. For how to overcome the dynamo of a short washing machine without rolling up, I will review it on the next opportunity. This might be useful.
I guest since this tutorial was issued in 2018, you already have a cocept of new revisions. I will be glad to read the revision. I suggest, beside the schematic, it is better if would attach some pictures or photos showing phisically the winding and the cable connections as explained in the schematic.
ReplyDeleteAs you know, in the present time, washing machines consist of morethan 3 wires. I will be glad if you would explained us how to check a faulty of a dynamo, for instance consistof 9 wires. Where each wires are connected and how to test it by using a multy tester. Thank you so much.