Baxi Control Knob 7223383

The Baxi 7223383 is a replacement control knob manufactured by Baxi for use on its domestic boiler range. It is the user-facing knob that fits onto the control spindle, allowing settings to be adjusted from the front of the appliance. The part sits within the buttons and knobs category of Baxi spares and is listed against a wide spread of Duo-tec and Megaflo models.

• The knob turns freely on the spindle without altering the appliance setting.
• Cracking, splitting or a rounded bore where the knob grips the shaft.
• The knob works loose and drops off the control spindle during use.
• Markings or position indicators have worn away, making settings difficult to read.
• Rotation has become stiff or gritty, or the knob no longer sits flush with the fascia.

• Check the GC number and serial number of your appliance against the compatibility list, as fitment varies across Duo-tec and Megaflo variants.
• Confirm the part number on the existing knob, or cross-check against alternative number 1119771.
• Inspect the control spindle and fascia while the knob is removed, and replace any damaged seals or fixings found at the same time.
• This is recorded as a non-gas part, so no gas-carrying joint is disturbed during replacement.