If your washer is taking too long to wash, start with the water supply. Confirm both the hot and cold water supply valves are fully open. A closed or partially open valve can make the washer fill slowly or delay the start of the wash cycle. If the supply is correct, the washing machine heating element may be faulty. Many washers use this element to raise the water temperature, and a failed element can cause a washer cycle to take too long. Disconnect power and use a multimeter to test the heating element for electrical continuity. If it has no continuity, replace it. Another common cause of a long wash cycle is a defective washing machine water inlet valve. Check household water pressure first, then clean the screens in the valve's hose connection ports. If the washer still fills slowly, replace the water inlet valve. These checks can help answer, "Why does my washer take so long?" and resolve a washer long wash cycle. Enter your model number to find the exact replacement heating element or water inlet valve for your specific washing machine.
01 - Water supply valve turned off
Confirm that both the hot and cold water supply valves are fully open. If the valves are closed or partially open the washer won't fill or will take longer to start the wash cycle.
Highly Likely
02 - Washing Machine Heating Element
Many washers use a heating element to raise the temperature of the water entering the tub. A defective element may cause the washer to take too long to clean its load. You can use a multimeter to test the heating element for electrical continuity. If the element tests negative for continuity, you'll know the heating element is faulty and will need to be replaced.
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The water inlet valve opens to allow water to enter the washing machine. If the water inlet valve is defective, the wash may fill slowly or not fill at all. The water inlet valve requires sufficient water pressure to function properly. First, check the water pressure to determine that it is adequate. If the water pressure is adequate, try cleaning the screens inside the water inlet valve hose connection ports. If the washer still fills slowly, replace the water inlet valve.