Hamilton Beach Blender Error ALL-BUTTONS-FLASHING

⚡ Quick Answer: The Hamilton Beach blender error code ALL-BUTTONS-FLASHING signifies a malfunction typically related to the control board, where all buttons flash wit... ✅ DIY Fixable

What Does Error ALL-BUTTONS-FLASHING Mean?

The Hamilton Beach blender error code ALL-BUTTONS-FLASHING signifies a malfunction typically related to the control board, where all buttons flash without response. This issue may arise from improper jar or lid seating, triggering interlock safety features, or it could indicate overheating or an imbalance during operation. Ensure the jar and lid are securely in place and allow the unit to cool if it has overheated. If the problem persists, further inspection may be needed.

Common Symptoms:

  • Control panel buttons or LEDs flash when start press fails
  • Blender stops mid-cycle and flashes
  • Buttons light up without expected motor operation

Possible Causes

  • Jar/lid interlock not engaged or misaligned (medium)
  • Unit overheated or stopped due to imbalance (medium)

How to Fix Error ALL-BUTTONS-FLASHING

DIY Fix Check jar and lid seating

  1. Unplug blender.
  2. Remove jar and lid from base.
  3. Inspect and re-seat jar fully onto the blender base.
  4. Ensure lid is properly oriented and fully seated on jar.

DIY Fix Allow unit to cool if overheated

  1. Turn blender off and unplug it.
  2. Wait at least 20–30 minutes to allow internal components to cool.
  3. Re-seat jar and lid, then try blending again with appropriate load.

Technician Only Inspect interlock sensors and internal wiring

  1. Disassemble base to access interlock switch assemblies.
  2. Test interlock switches for continuity with a multimeter.
  3. Check wiring connections between interlock and control board.
  4. Repair or replace faulty switch or wiring as needed.

Parts needed: interlock switch assembly, wiring harness

Technician Only Service control board if flashing persists

  1. Diagnose control board for faults if buttons continue to flash after user-level checks.
  2. Replace control board if diagnostics confirm failure.

Parts needed: control board

🛑 When to Call a Pro:
  • If flashing persists after ensuring correct jar/lid seating and cooling period
  • If interlock switches or wiring appear damaged
  • If the unit shows signs of internal electrical faults (burn smell, smoke)

Next step

Choose the next step for ALL-BUTTONS-FLASHING

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Diagnostic aid

Optional aid — no replacement part was confirmed

Appliance Repair Tool Kit

Standard diagnostic and repair tool kit for major household appliances.

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Technical Specifications

wattage 700W
component Control Board
resistance 5-15 ohms
part_number HB-CTRL-001
voltage_rating 120V AC

Common Questions

What does ALL-BUTTONS-FLASHING error mean on Hamilton Beach blender?

It indicates a malfunction in the control board, often due to jar/lid misalignment or overheating.

Can I fix Hamilton Beach blender ALL-BUTTONS-FLASHING error myself?

Yes, check and re-seat the jar and lid, and allow the unit to cool if overheated.

How much does it cost to fix ALL-BUTTONS-FLASHING error?

Estimated repair costs range from $15 to $60 depending on the issue.

When should I call a technician for ALL-BUTTONS-FLASHING?

Call if the issue persists after reseating the jar/lid or if there are signs of internal damage.

Sources & References

Data last verified: 2026-04-23

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