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I have a whirlpool du1100xtpt9 whose circulation pump had been deteriorating for years, it was obviously failing and was getting louder and louder until it finally died. I ordered and replaced the pump (WPW10757217) and it worked fine for about half a dozen loads. Then, when starting a cycle, the machine would fill with water, but the circulation pump would only make a faint humming sound without circulating any water. I was informed that its likely a blockage somewhere, but I checked both the interior drain and reseated the pump to check the connection there too. No blockage detected. I decided to run a test cycle to see what would happen and it ran perfectly fine. Once. Since then I’ve had the same results as before… washer fills with water, pump emits a faint hum, but does not circulate water. Any ideas?
Hi, Did the replacement pump come with a new run capacitor - part #26 Pump and Motor parts? Usually a hum emanating from a motor means that there is not enough current flowing to start the motor turning. This could be due to faulty windings (unlikely as it is a new pump) or a bad capacitor or bad (loose?) capacitor connections. Looking at an image of the pump motor the capacitor is mounted on the motor itself. You said that you checked the connections. Did you check the capacitor connections as well? Do you still have the old pump with the capacitor still attached? Perhaps if you swapped the old capacitor in and try that to see if the pump starts.
