Problem summary
Your Kenwood dishwasher is displaying error code F5 on the control panel. This code indicates a fault that requires diagnosis by a qualified engineer. Based on 79 similar reports, we've identified the most common underlying issues.
Likely causes
Our engineers have found that F5 errors are most often linked to one of three areas:
Inlet hose or water supply (around 16.5% of cases)
A kinked, loose, or blocked fill hose can prevent water from entering the machine properly. This includes the connection points at both the tap and the dishwasher inlet valve.
Control board (PCB) (around 15.2% of cases)
Electrical faults on the main circuit board can trigger false error codes or genuine sensor failures. This is sealed equipment and requires specialist knowledge.
Pump or motor (around 13.9% of cases)
Blockages or mechanical wear in the circulation pump, or faults in the motor driving it, can cause the dishwasher to stop mid-cycle and display an error.
Why this needs an engineer
Error code F5 involves components that are either electrical, mechanical, or part of sealed systems:
- Electrical diagnosis: Identifying whether the PCB has genuinely failed or if a sensor is faulty requires test equipment and experience.
- Sealed systems: The pump and motor sit within the dishwasher's sealed plumbing. Accessing these safely requires proper training.
- Water safety: Hose issues can lead to leaks if not correctly assessed and repaired. Incorrect tightening or replacement risks water damage.
Attempting DIY repairs on these components may void any remaining warranty, create safety hazards, or damage other parts.
What to do now
- Check the obvious first: Make sure the inlet tap is turned on fully and the hose isn't visibly kinked or crushed behind the machine.
- Note any other symptoms: Does the machine fill with water at all? Are there any leaks? Any unusual noises? Pass these details to the engineer.
- Call a qualified engineer: They can safely test the water inlet, inspect the pump, and read the error code from the control board to pinpoint the fault.
If you're in Northern Ireland, SMC Services can usually book a repair within 2-3 working days.
FAQ
Q: Does F5 always mean the pump is broken?
A: No. Around one in three F5 faults are actually water supply issues (hose or valve), not the pump itself. An engineer needs to run diagnostics to confirm which component has failed.
Q: Can I clear this error code myself?
A: Resetting the machine by switching it off at the mains for 30 seconds occasionally clears temporary glitches, but if F5 returns, there's an underlying fault that won't go away without repair.
Q: Is it safe to run the dishwasher with this error showing?
A: No. The error code means the machine has detected a fault and stopped operation. Running it may cause water leaks or electrical hazards.
Q: Will the hose just need tightening?
A: Sometimes, but not always. If the hose is genuinely loose or cracked, a simple tighten won't be enough. An engineer will inspect and replace it if necessary.
Q: How much does a repair usually cost?
A: That depends on the fault. We can give you an estimate once the engineer has diagnosed which part has failed.