If your drain pump is working properly, the multimeter should show a reading of between 160 and 260. If the reading is too high, too low, or if there's no reading at all, it means the drain pump is faulty and needs to be replaced with a new one.
Finally, to be sure your drain pump is working properly, you can test it with a multimeter on the two terminals. Your multimeter should show a reading of about 200 ohms for a working drain pump.
You can do this by taking an old power cord from a junk appliance, tool, or light and stripping the ends of power and common. Attach them to the motor leads and plug it in keeping hands away from those wires. If the impeller spins it is good. If it doesnt spin it is bad.
No washer movement: Washing machines spin and jerk quickly to loosen dirt on fabrics. No or little movement during washing cycles often means you need a new drain pump.
If you find water pooling across the bottom of the tub area or leaking onto the floor when you open the dishwasher door, then the drain pump motor could be malfunctioning and you will need a dishwasher pump replacement.
Grinding or buzzing noise
You can hear your dishwasher grind or buzz when it forces water down the drain. If the sound is very loud, check your pump impeller. To do this, you will need to remove the lower basket, spray arm and filter unit.
If F9 E1 (drain pump system problem—long drain) appears in the display, the washer is taking too long to drain water.
While that may seem like a lot, keep in mind that a lot of these pumps come with a guaranteed lifespan of around two decades. That's more than your dishwasher will last you. However, there is something else you ought to consider before you replace the pump. Check the general health of the appliance first.
Dishwasher Drain Pump Issues
The motor of the drain pump can burn out or malfunction, leading to drainage issues. The impeller inside the pump can also be blocked or damaged, preventing water from being pumped out.
Pump - The pump is responsible for circulating water throughout the dishwasher. If it fails, your dishes won't be cleaned properly. The average cost to fix a pump is around $150, with a range of $100 to $350. To troubleshoot, check for a clogged filter or faulty motor.
If your drain pump is working properly, the multimeter should show a reading of between 160 and 260. If the reading is too high, too low, or if there's no reading at all, it means the drain pump is faulty and needs to be replaced with a new one.
However, dishwashers don't last forever. The life expectancy of a dishwasher is about 10 years, according to manufacturers surveyed by Consumer Reports. However, issues with the appliances tend to develop within the first five years.
Water will not pump into the dishwasher.
Dishwashers have sensors and water pumps they use to let the computer inside them know when to pump water in and pump it out. If this sensor is dirty, has become stuck, or has broken, it needs to be repaired. If the pump has failed, it also needs to be replaced.
Sound One of the first tell-tale signs of an underperforming pump is the sound that it makes. A change in sound can alert you to an issue with your pump or system. If you hear popping sounds, especially near the impeller, you could be experiencing cavitation.
Breast pump tubing should be replaced every four to six months. However, if you notice any signs of molding, you will need to replace the tubing immediately. Breast milk bottles and containers should be replaced as needed. Keep an eye on your bottles for any sign of degradation or cracks.