Component Testing Procedures
!WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power.
NOTE: See “Machine Control Board” on next page for pin and connector locations.
Illustration | Component | Test Procedure | Results |
| Thermistor | Unplug harness connector and test |
|
|
| from wire insertion side of connector. | 13K ohms @ 70F/21C (2.5V DC) |
|
| Pin #6 and Pin #3 of CN3 | |
| Door Switch | Check voltage at Pin #6 and Pin #4 of | Door Open = 5V DC |
|
| CN3 | |
|
| Unplug harness connector and test | Door Closed = 0V DC |
|
|
| |
|
| from wire insertion side of connector. |
|
|
| Pin #7 of CN10 and Pin #3 of CN5 | 60 ohms |
|
| Pin #8 of CN10 and Pin #3 of CN5 | 60 ohms |
| Water Sensor | Check voltage and frequency at Pin #6 | Reset water level = 2.5V DC, 25.8 KHz |
|
| and Pin #7 of CN3 | |
|
| Check voltage and frequency at Pin #6 | Reset water level = 2.5V DC, 25.8 KHz |
|
| and Pin #8 of CN3 | |
|
|
|
|
| Sump Sensor | Check voltage at Pin #4 and Pin #3 of |
|
|
| CN8 | 0V DC or 3.75V DC |
|
|
|
|
| Motor | Unplug harness connector and test |
|
|
| from wire insertion side of connector. | 3.0 ohms |
|
| Pin #1 and Pin #2 of CN9 | |
|
| Pin #1 and Pin #3 of CN9 | 3.0 ohms |
|
| Pin #2 and Pin #3 of CN9 | 3.0 ohms |
|
| Any 2 Pins (1,2,3) on Motor Connector | 3.0 ohms |
| Drain Pump | During drain check voltage at Pin #1 of |
|
|
| CN5 and Pin #6 of CN10 | 120V AC |
|
|
|
|
| Water Valves | Check voltage at Pin #1 and Pin #1,2,4 | 120V AC when each valve operates |
|
| of CN10 | |
|
| Unplug harness connector and test |
|
|
| from wire insertion side of connector. |
|
|
| (Pre valve) Pin #3 of CN10 and Pin #2 | 1100 ohms |
|
| of CN7 | |
|
| (Hot valve) Pin #2 of CN10 and Pin #2 | 1100 ohms |
|
| of CN7 | |
|
| (Bleach valve) Pin #4 of CN10 and Pin | 1100 ohms |
|
| #2 of CN7 | |
|
| (Main valve) Pin #1 of CN10 and Pin | 1100 ohms |
|
| #2 of CN7 | |
| AC Power | Check voltage at Pin #1 and Pin #3 of | 120V AC |
|
| CN5 | |
|
| Check voltage at Pin #1 of CN5 and | 120V AC |
|
| Pin #1 of CN6 | |
| Heater Relay | During water heat check voltage at Pin |
|
|
| #1 of CN5 and Pin #2 of RY9 | 120V AC |
| Reactor | Unplug harness connector and test |
|
|
| from wire insertion side | Less than 1 ohm |
|
|
|
|
| MEMS Sensor | Check voltage at Pin #1 and Pin #5 of | Approximately 2.5V (2.2V – 2.8V) |
|
| CN11 | |
|
| Check voltage at Pin #1 and Pin #4 of | Approximately 2.5V (2.2V – 2.8V) |
|
| CN11 | |
16026882 |
| 2 | June 2006 |
RPL 16026127 |
|
| ©2006 Maytag Services |