If your washer suddenly stops during what should be the rinse cycle, the issue is most likely related to either the water coming into your machine, or the valve that opens and delivers the water. First, make sure both the hot and cold water faucets are on and working. Depending on your washer model, you may or may not have the option to rinse with warm or hot water. Try starting a rinse cycle and watch the water entering the machine. If the water is trickling in this might be the problem. Normally, a healthy flow of water is normal for the rinse cycle. The machine monitors when the tub is full of water and can advance to the next step of the cycle. If the water takes too long to fill the tub, new machines will sometimes generate an alarm indicating that either no water is entering the machine, or not enough in a given amount of time. In either case, the washer will stop.
While you may immediately think that your washer is at fault, the real problem may well be coming from either water faucet. The fill hose screens are known to accumulate dirt over time and eventually block most or all of the water coming into your washer. To check this, simply turn off both hot and cold faucets, remove the hoses from the faucets and check for the presence of screens just inside the ends of the hoses. If none are there, remove the hoses from the machine side and check the screens on the inlet valve itself. If they’re dirty, spray glass cleaner or plain water on the screens while brushing them with an old toothbrush or other small brush. When finished, be sure to clean the hose threads to ensure a good seal when reinstalling the hoses. Do the same to the faucet threads, too. If you found dirt on any of the screens, chances are good that your rinse water pressure will recover!
Another equally common cause of low rinse or wash water pressure is the inlet valve(s) may have failed completely. To check this, turn both faucets off, remove the hoses from the inlet valve at the machine, then aim each hose into either a laundry tub, a bucket, or into the drain standpipe. Turn each faucet on slowly to verify water and pressure. If water is present, the next step is with the hoses disconnected and the faucets off, start a rinse or wash cycle while holding your hand directly on the inlet valves. You should feel the valves vibrate when energized. To this point, if you have little or no water coming into your machine after you cleaned the screens and verified good water pressure from the hot and cold water lines, and even though the inlet valve does energize, the inlet valve solenoid plungers are seized, and the valve must be replaced.
Note that on some Whirlpool top load washers, occasionally the timer will fail and not allow water to enter the machine, regardless of setting. This isn’t common, but has been known to happen. A final suggestion with low water pressure, if the hoses are more than five years old they could contribute to the problem. This is especially true if you see corrosion on or around the faucet handles or threads. Be extra careful when turning the faucets on and off, and when unscrewing the hoses. They could jam and break off. If you doubt your ability at any time, stop and call a professional to complete the job.