Dishwasher Won't Fill? All the Easy Fixes You Need to Know
If your dishwasher isn’t filling with water when you begin a cycle, it’s not going to do much in the way of getting your dishes clean. There are a few reasons why your dishwasher might not fill with water, and some are very easy fixes. The easiest check is to see whether there’s anything preventing the overfill float switch from freely moving up and down. If it’s stuck in the highest position, this will prevent any water from entering your dishwasher tub. If that doesn’t solve the problem, our friends at Sears PartsDirect have some other fixes you can try to get your dishwasher running smoothly again.
Learn more about troubleshooting a dishwasher that won't fill from Sears PartsDirect.
Replace the Water Inlet Valve
Also known as the solenoid fill valve, the water inlet valve is responsible for flowing water into the dishwasher throughout a cycle. If the water inlet valve fails to open entirely or at all, this will prevent any water from entering the dishwasher tub. If the water inlet valve is not opening correctly, it needs to be replaced.
Replace the Overfill Float Switch
The overfill float switch helps to prevent too much water from entering the dishwasher tub by rising and lowering to detect the water level. When water gets to a certain level, the overfill float switch shuts off power to the water inlet valve to prevent additional water from flowing inside. The overfill float switch is located underneath the dishwasher tub and is connected to the mushroom float located inside of the tub. The mushroom float might be working properly, but the overfill float switch still could have failed. In that case, it needs to be replaced.
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Learn more about replacing a dishwasher overfill float switch from Sears PartsDirect.
Replace the Door Latch Assembly
The dishwasher will not operate if it detects that the door is open. If you close the door tightly but the latch doesn’t shut, the door latch assembly may be damaged and should be replaced. Even if the latch does properly close, the micro switch could still fail to signal to the dishwasher that the door is closed. If that is the case, the micro switch should be replaced.
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Learn more about replacing a dishwasher door latch assembly from Sears PartsDirect.
Replace the Control Panel
If the control panel on your dishwasher shows visible signs of damage or has become loose from the unit, it could be failing to signal for a cycle to begin. Additionally, a single button or group of buttons could get stuck, which might also prevent the dishwasher from starting. If a button is stuck, you might notice a flashing light on the control panel. If your control panel is damaged, loose or stuck, it may need to be replaced.
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Learn more about replacing a dishwasher control panel from Sears PartsDirect.
Replace the Electronic Control Board
The electronic control board is responsible for controlling all of the dishwasher’s many moving parts. If the electronic control board is receiving electricity yet fails to communicate with the dishwasher’s other parts, it may be damaged or defective. In this case, it needs to be replaced.
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Learn more about replacing a dishwasher electronic control board from Sears PartsDirect.
Replace the Timer
The dishwasher timer connects to many other components within the dishwasher including the wash pump, drain pump, water inlet valve and heating element. The timer dictates when each component should operate throughout a cleaning cycle. During a cycle, the timer will advance the knob on the control panel forward to determine when the cycle should end. If the timer is not moving the control knob or fails to operate other dishwasher components, it should be replaced.
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Learn more about replacing a dishwasher timer from Sears PartsDirect.
Replace the Water Inlet Assembly
The water inlet assembly receives water from the water inlet valve and directs it toward the inside of the dishwasher tub via an open vent. If the hose that connects the water inlet valve and water inlet assembly or the vent leading to the dishwasher tub is clogged, clear them out to allow water to freely flow into the tub. If there are signs of damage to the water inlet assembly, it should be replaced.
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