Quick answer: A washing machine that keeps filling with water usually has a stuck water inlet valve, a failed pressure switch, or a siphoning drain hose. The valve is the most common cause: when sediment or wear holds it open, water flows even with the machine off. A drain hose pushed too far down the standpipe can also siphon water straight through, so the tub never registers as full. First, shut off the supply taps to stop the flow and prevent water damage, then unplug the machine. From there the fault is usually the valve or the pressure switch, both jobs for a technician.
Why your washer keeps filling with water
An overfilling washer points to a valve that will not close, a switch that misreads the level, or a hose that siphons. Here is what each symptom points to. A washer at the opposite extreme that will not fill at all is a different fault with its own fixes. So is a washer that will not start at all.
| Symptom | Likely cause |
|---|---|
| Fills even when switched off | Inlet valve stuck open from wear or debris |
| Overfills and never stops | Faulty water-level pressure switch or blocked air tube |
| Fills and drains at the same time | Drain hose too low, siphoning water through |
| Slow, uncontrolled fill | Damaged or partly clogged inlet hose |
Shut off the water first
An overfilling washer can flood a laundry room fast, so act before you diagnose. Turn off both supply taps behind the machine to stop the water, then unplug it. Doing this first protects your floors and gives you a safe, dry machine to inspect. Water damage is far more expensive than the repair itself.
The inlet valve stuck open
The water inlet valve is the usual culprit. It should open only when the machine calls for water and snap shut the rest of the time. When grit lodges in it or the internal seal wears, it stays partly open and lets water dribble or pour in continuously. A valve stuck open cannot be adjusted back to reliable service and needs replacing.
The pressure switch and air tube
The pressure switch senses the water level through a small air tube and tells the machine when to stop filling. If the switch fails or the air tube splits or clogs, the machine never learns the tub is full and keeps adding water. Here at Profixit, we check the tube and the switch together, since a cracked tube mimics a failed switch.
A siphoning drain hose
If the tub fills and drains at once, the drain hose is likely pushed too far down the standpipe, creating a siphon that pulls water straight through. The hose should sit at the height the manufacturer specifies, with an air gap. Raising it and securing the loop often stops the runaway fill on its own.
When to call a technician in Winnipeg
Call a professional once the water is off and you suspect the inlet valve or pressure switch, or if the overfilling returns after you correct the drain hose. Profixit repairs all major washing machine brands across Winnipeg and nearby areas with same-day service, licensed technicians, and a 90-day guarantee. Catching a stuck valve early prevents a flooded floor.
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Frequently Asked Questions
Why does my washing machine keep filling with water?
The most common cause is a water inlet valve stuck open from wear or debris, which lets water in even when the machine is off. A failed pressure switch or a siphoning drain hose can also cause it. Shut off the supply taps first, then have the valve checked.
Why does my washer fill and drain at the same time?
That is usually a siphoning drain hose pushed too far down the standpipe. It pulls water straight through, so the tub never registers as full. Raise the hose to the height the manufacturer specifies and keep the required air gap.
Is an overfilling washing machine dangerous?
It can flood a laundry room and cause water damage quickly. Shut off both supply taps and unplug the machine as soon as you notice it. The repair itself is minor compared with the cost of water damage to floors and ceilings below.
Who fixes a washer that keeps filling in Winnipeg?
Profixit repairs all major washer brands across Winnipeg with same-day service and a 90-day guarantee. Call (431) 813-3999 once the water is off and the machine is unplugged.
