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Error code · Built-In Coffee Machine

Bertazzoni CM242WTXT Message “Descaling needed. Press OK to start (~45min)”: Scale Cleaning Due

On the Bertazzoni CM242WTXT built-in coffee machine, this message means the machine must be descaled. Limescale has built up with use, and the display asks you to press OK to begin the descaling program, which takes…

Low risk · DIY check OK
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Code
Descaling needed. Press OK to start (~45min)
Appliance
Built-In Coffee Machine
Brand
Bertazzoni
Warranty
30-day workmanship

What Descaling needed. Press OK to start (~45min) means

On the Bertazzoni CM242WTXT built-in coffee machine, this message means the machine must be descaled. Limescale has built up with use, and the display asks you to press OK to begin the descaling program, which takes about 45 minutes. Until you run it, the machine keeps showing the prompt and may keep you from brewing. Owners see the text on the screen and little else.

Common causes of Descaling needed. Press OK to start (~45min)

  • Mineral scale built up inside the water circuit from regular use
  • The descaling reminder reached its limit and is waiting for the cycle
  • A water filter that is exhausted, which lets scale build faster
✓ One safe check you can try

1. Empty the drip tray and the grounds container before you begin. 2. Fill the water tank with fresh water mixed with a descaling product made for coffee machines. 3. Press OK and stay nearby; the program runs about 45 minutes. 4. Rinse the tank, refill it with fresh water and brew a test cup. If the message returns right away, call us.

! Why to stop there
  • Skipping the cycle lets scale build until flow slows and heating suffers.
  • Home-made descaling mixes can attack seals, so the right product matters.
  • If descaling will not run or finish, we diagnose it for a price you approve first, with a 30-day workmanship warranty on any repair.
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
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Other Built-In Coffee Machine codes

Fill water tank with fresh waterBertazzoni CM242WTXT Message "Fill water tank with fresh water": Tank Low or Misseated Ground too fine. Adjust grind level 1 level while in operationBertazzoni CM242WTXT Message "Ground too fine": Slow or No Coffee Delivery Insert brewing unitBertazzoni CM242WTXT Message "Insert brewing unit": Infuser Not Put Back Insert ground containerBertazzoni CM242WTXT Message "Insert ground container": Grounds Bin Missing Insert milk containerBertazzoni CM242WTXT Message "Insert milk container": Milk Jug Not Seated Insert water outletBertazzoni CM242WTXT Message "Insert water outlet": Hot Water Spout Missing Replace water filter. Press OK to startBertazzoni CM242WTXT Message "Replace water filter": Softener Cartridge Used Up Turn milk froth adjustment knob to <CLEAN> to start cleaningBertazzoni CM242WTXT Message "Turn milk froth adjustment knob to <CLEAN>": Milk Tube Rinse Due
Descaling needed. Press OK to start (~45min)Descaling needed. Press OK to start (~45min) questions
How long does the descaling program take?

The message itself says about 45 minutes. The machine needs that time to run solution through the water circuit and rinse it out, so start it when you will not need coffee.

Can I ignore the message for a while?

You can for a short time, but scale slows the water flow and makes the machine work harder. It is best to run the cycle soon and keep the water filter fresh.

What if the message comes back after descaling?

Make sure the cycle ran to the end and the tank was refilled with fresh water. If the prompt still returns, the machine may not have completed the program, and we would check it.

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Still unsure about Descaling needed. Press OK to start (~45min)?

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