M
f52
Moderate
Miele · Dishwashers
Heater pressure switch reset during heating cycle
Quick Answer
Error code F52 on your Miele Dishwashers means: Heater pressure switch reset during heating cycle. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Excessive detergent or rinse aid causing excess foam
  2. Defective heater pressure switch
  3. Circulation pump pressure is too low
  4. Blocked spray arms reducing water pressure
How to Fix It
1
Reduce the amount of detergent and rinse aid used.
2
Run an empty rinse cycle to clear excess foam.
3
Check and clean the spray arms for blockages.
4
If the error persists, the heater pressure switch may need replacement.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Heater pressure switch
Spray arms (if blocked)
Related Error Codes
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