Tristar
No Power / Dead Unit
Air fryer does not power on at all; no lights, no beeps.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Blown internal fuse on main PCB, Damaged power cord, Faulty power inlet socket, Failed main control PCB power supply
How to Fix / Troubleshooting
Safety: Unplug the unit before any inspection. Do not bypass safety fuses with wire or foil.
- External checks:
- Verify the wall outlet works by plugging in another appliance.
- Inspect the Tristar power cord for cuts, burns, or crushed sections.
- Check cord and inlet:
- Gently wiggle the plug in the outlet; if power flickers, replace the cord or use a different outlet.
- Inspect the power inlet on the fryer for looseness or damage.
- Internal fuse (advanced):
- Remove the back/bottom cover to access the main control PCB.
- Locate the small glass or ceramic fuse near the mains input.
- Test continuity; if blown, replace with the same type and rating.
- Further diagnosis: If the new fuse blows immediately, suspect a shorted component on the PCB or in the heater circuit. At this point, replacing the main control PCB or seeking professional service is recommended.
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Repair Difficulty
Hard
4/5
Required Part
Internal Line Fuse
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