When starting a cycle, tub will fill properly, then when it is time for the wash cycle to begin, nothing happens. you can only hear a relay or other type switch click one time. after the one click, the...
The question is why the main motor is not running. Either there is an open contact in the timer, or the motor has a blown thermal protector or tripped internal breaker.
Troubleshooting starts at the timer. Most washing machines have a wiring diagram on a sheet of paper either folded up and stored inside the control panel or pasted on the back panel of the machine. Find the wires going from the timer to the motor. The motor has two windings, RUN and START. The RUN winding has one connection to neutral (WHT or WHT/BLK, meaning white or white with a black stripe) and the other to the timer. The START winding has both connections going to the timer. The timer connects it power one way for agitate and the other way for spin. (The direction of current through the START winding determines whether the motor will turn clockwise or counterclockwise.)
If you are comfortable working in a live 120 VAC circuit with a voltmeter, use the wire colors in the diagram to identify the motor terminals on the timer, set the timer to the agitate position (i. e., right after the machine is done filling and you hear the click), then check for voltage on the RUN and the START winding terminals. For the START winding, measure between the terminals going to the START.
If you don't want to probe a live circuit, you can use an ohmmeter to test for continuity between the hot terminal of the power cord and the motor terminals on the timer. Repeat for the neutral terminal. A failure at this point indicates either a timer problem or (unlikely since the timer runs) a bad contact on the water level switch.
If you get voltage to the motor on both windings, or you have continuity through the timer for both windings, then, with the machine unplugged, test for continuity through each motor winding at the timer. An open indicates a problem with the motor. Note: most machines use a capacitor in series with the START winding. In that case, measure continuity between the capacitor terminal going to the motor and the timer terminal going directly to the motor.
Apr 17, 2011 |