Dishwasher Not Filling With Water
Common causes and checks you can carry out at home before calling an engineer.
🚰 Check the water supply tap first — The tap under the sink supplying the dishwasher must be fully open. A partially closed tap is the most common cause of fill faults.
Common Causes
🚰
Water Supply Tap Turned Off or Not Fully Open
The most common cause. The tap supplying the dishwasher must be fully open — it is usually located under the kitchen sink. Even a partially closed tap will prevent the machine from filling correctly.
🌀
Kinked or Blocked Inlet Hose
If the water inlet hose is kinked or blocked, water cannot flow into the machine. Inspect the hose at the back of the appliance and straighten if necessary.
🔍
Blocked Inlet Filter
A small mesh filter at the water inlet valve connection can become clogged with debris and restrict water flow into the machine. It can be removed and rinsed clean.
⚙️
Faulty Water Inlet Valve
The water inlet valve controls the flow of water into the dishwasher. If it has failed, water will not enter the machine even if the supply is fully open. Requires professional diagnosis and replacement.
🔵
Float Switch Fault
The float switch monitors the water level inside the tub. If it is stuck in the raised position it will prevent the machine from filling even when the tub is empty. Requires professional diagnosis.
🚪
Door Not Fully Closed
The dishwasher will not fill if the door is not properly latched. Ensure the door is firmly closed and the latch is fully engaged before starting a cycle.
Checks To Try Before Calling An Engineer
🚰
Check the Water Supply Tap
Locate the tap under the sink and ensure it is turned fully open. This is the most common cause and takes seconds to check.
🌀
Check the Inlet Hose
Inspect the water inlet hose for any kinks or crushing and straighten if necessary. Ensure it is not trapped behind the appliance.
🔍
Clean the Inlet Filter
Turn off the water supply. Disconnect the inlet hose from the back of the machine and remove the small mesh filter from the inlet valve connection. Rinse under running water and refit before reconnecting the hose.
🚪
Check the Door
Open and firmly reclose the door, ensuring it latches correctly before restarting the cycle.
🔄
Reset the Machine
Switch the dishwasher off at the mains and leave it unplugged for a few minutes. Plug back in and try again to see if the fill fault clears.
Browse by Brand
Select your dishwasher brand for fill fault error codes and specific guides.
🔧
When to call a professional — If the dishwasher still fails to fill after checking the supply, hose and filter, the water inlet valve or float switch is likely faulty and will need to be tested and replaced by a qualified engineer.
View all dishwasher error codes →🔧 Need a spare part? Find compatible parts for your appliance on Amazon with next day Prime delivery. Please double-check the part is compatible with your specific model before ordering. Find parts on Amazon
♻️ Not worth repairing? If your appliance has had its day, eco-friendly refurbished appliances are available at Renew 2 U — better for your wallet and the planet.
