Problem summary
Your Kenwood dishwasher completes its wash cycle but water remains in the drum and won't drain away. The machine may stop mid-cycle or finish normally, leaving standing water that prevents you from opening the door safely or removing dishes.
Likely causes
Engineers report that drainage faults in Kenwood models most commonly stem from:
Drain pump failure (most frequent)
The pump can fail electrically or mechanically. When this happens, water cannot be expelled, even though the cycle runs as normal.
Blockage in the pump or hose
Small items—socks, food debris, or packaging material—can lodge in the pump inlet or drain hose, preventing water from leaving the machine.
Drain hose obstruction or kink
The hose connecting the machine to your waste pipe may be kinked, crushed, or blocked by external debris. Check the route of the hose behind and under the machine.
Motor or control board fault
The pump motor itself, or the circuit board controlling it, can fail. These faults are less common but do occur.
Why this needs an engineer
The drain pump is electrically powered and sealed within the machine. Accessing it requires dismantling the appliance, and testing it properly demands specialist equipment. Similarly, the motor and control board (PCB) require professional diagnosis. Attempting to force or disassemble these components risks water damage, electrical hazard, or permanent harm to the machine.
If the hose is kinked or obviously blocked externally, you may inspect or straighten it yourself—but once you need to remove panels or access internal parts, a qualified engineer should take over.
What to look for before calling:
- Check whether the drain hose (usually at the back of the machine) is kinked, crushed, or disconnected from your waste outlet.
- Listen during the cycle: does the pump make any noise when it should be draining? Silence can indicate pump failure.
- Note any error codes displayed on the control panel and pass these to the engineer.
- Ensure the machine is switched off and isolated from the mains before inspecting any hoses.
When to call SMC Services
If water won't drain and the hose appears unobstructed, or if straightening the hose doesn't solve the problem, contact a qualified engineer. Pump, motor, and control board faults account for the vast majority of non-drain cases and require professional tools and parts.
If you're in Northern Ireland, SMC Services can usually book a repair within 2-3 working days.