Finding that an appliance has failed its PAT test can be concerning, but it is actually a sign that the testing process is working as it should.
Why Do Appliances Fail?
The most common reasons for PAT test failure are:
- Damaged cables: Cuts, fraying, or kinks in the power cable
- Damaged plugs: Cracked casings, loose pins, or incorrect fuse
- Earth continuity failure: The earth connection is broken or has high resistance
- Insulation failure: The insulation has degraded, creating a risk of electric shock
- Physical damage: Cracked casings, missing screws, or exposed internal components
What Happens When an Appliance Fails?
A failed appliance is labelled with a red FAIL sticker and must be taken out of service immediately. It should not be used until repaired and retested, or replaced.
Can Failed Appliances Be Repaired?
Many failures are simple to fix. A damaged plug can be replaced. A frayed cable can be shortened or replaced. Once repaired, the appliance needs retesting. Some failures like insulation breakdown in older equipment may mean the appliance needs replacing.
Your Options
- Repair and retest: Fix the fault and have the appliance retested
- Replace: If the appliance is old or repair cost is high, replacement may be more economical
- Dispose safely: Failed appliances should be disposed of at a WEEE recycling point
If any appliances fail during your PAT test with us, we will explain the fault clearly and advise on the best course of action. Get in touch to book your test.
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