Candy Induction Hob Error ER21

⚡ Quick Answer: The Candy Induction Hob error code ER21 signals a malfunction in the induction coil, which may result in unusual buzzing sounds and an unresponsive di... ✅ DIY Fixable

What Does Error ER21 Mean?

The Candy Induction Hob error code ER21 signals a malfunction in the induction coil, which may result in unusual buzzing sounds and an unresponsive display. This error often leads to the hob or cooking zone shutting down unexpectedly, indicating a protective response. If the error persists after attempting basic resets, it is advisable to consult a qualified technician for further diagnosis and repair.

Common Symptoms:

  • Error code with letters and numbers displayed on hob control
  • Hob or cooking zone has turned itself off unexpectedly

Possible Causes

  • Induction coil

How to Fix Error ER21

DIY Fix Basic checks and reset

  1. Turn the induction hob off at the wall (isolate power).
  2. Wait a few minutes and restore power to see if the error clears.
  3. Ensure cookware is induction‑compatible and correctly placed on a zone.
  4. Check that ventilation openings around the hob are not blocked.

Technician Only Diagnostic inspection by technician

  1. Record the exact error code display when ER21 appears.
  2. Inspect the hob’s power supply and internal components for faults.
  3. Use service tools to read internal diagnostics if supported by model.
  4. Consult manufacturer technical documentation or support for code interpretation.

Parts needed: Multimeter or diagnostic interface, Potential sensors or control board parts depending on fault

🛑 When to Call a Pro:
  • Error persists after reset and basic checks
  • Signs of electrical damage, burning smell, or repeated protective shutdowns

Technical Specifications

wattage 2000W
component Induction Coil
resistance 10-20 ohms
part_number CANDY-IC12345
voltage_rating 230V AC

Common Questions

What does ER21 error mean on Candy Induction Hob?

ER21 indicates a malfunction in the induction coil, resulting in shutdown and buzzing sounds.

Can I fix Candy Induction Hob ER21 error myself?

Yes, try turning off the hob at the wall, waiting a few minutes, and ensuring your cookware is compatible.

How much does it cost to fix ER21 error?

Repair costs range from $100 to $400, depending on the diagnosis needed.

When should I call a technician for ER21?

Call a technician if the error persists after reset or you notice electrical damage or burning smells.

Sources & References

Data last verified: 2026-04-14

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