
Ariston
Ariston Spindle On/Off Knob 998572
On/off knob spindle, part 998572, for Ariston Microgenus 23 and 27 MFFI gas boilers.
At a glance
- Part type: on/off knob spindle
- Also known as SPINDLE-ONOFF-KNOB, 1577128
£8.95
£7.46 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Ariston 998572 is an on/off knob spindle used on Microgenus MFFI gas boilers. It forms the rotating control that operates the boiler's on/off function. The spindle is supplied as a single control component for the Microgenus range.
Signs this part needs replacing
- The on/off knob turns freely without operating the boiler
- The knob will not rotate at all when turned by hand
- The knob feels loose or wobbles on the spindle
- The spindle splines or shaft are worn, rounded or damaged
- The knob has cracked or split around its mounting
Before you order
- Confirm your boiler model is a Microgenus 23 MFFI or 27 MFFI
- Check the edition number of your appliance against the fit list
- Confirm whether your boiler is LPG or NG before ordering
- Compare the existing spindle and knob against part number 998572
Compliance
| Barcode / EAN | 5411692285173 |
|---|---|
| Alternative numbers | SPINDLE-ONOFF-KNOB, 1577128 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON MICROGENUS 23 MFFI (CMP2) LPG EDITION 4 (SEPT 2002) | — | — | — | |
| ARISTON MICROGENUS 23 MFFI (CMP2) NG EDITION 4 (SEPT 2002) | — | — | — | |
| ARISTON MICROGENUS 23 MFFI LPG EDITION 1 (DEC 1999) | 47-116-14 | 47-116-14 | — | — |
| ARISTON MICROGENUS 23 MFFI LPG EDITION 2 (APR 2000) | 47-116-14 | 47-116-14 | — | — |
| ARISTON MICROGENUS 23 MFFI LPG EDITION 3 (DEC 2000) | 47-116-14 | 47-116-14 | — | — |
| ARISTON MICROGENUS 23 MFFI LPG EDITION 5 (MAR 2004) | 47-116-14 | 47-116-14 | — | — |
| ARISTON MICROGENUS 23 MFFI NG EDITION 1 (DEC 1999) | 47-116-14 | 47-116-14 | — | — |
| ARISTON MICROGENUS 23 MFFI NG EDITION 2 (APR 2000) | 47-116-14 | 47-116-14 | — | — |
| ARISTON MICROGENUS 23 MFFI NG EDITION 3 (DEC 2000) | 47-116-14 | 47-116-14 | — | — |
| ARISTON MICROGENUS 23 MFFI NG EDITION 5 (MAR 2004) | 47-116-14 | 47-116-14 | — | — |
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