Alpha
Alpha Control Knob 1.023345
Control knob for the main selector switch on Alpha gas boilers, manufacturer part number 1.023345.
At a glance
- Part type: control knob for the main selector switch
- Also known as KNOB-MAIN-SWITCH-252835C-KNOB-MAIN-SWITCH-252835C, 1258313
£4.94
£4.12 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 Alpha 1.023345 is a control knob for the main selector switch on Alpha gas boilers. It fits onto the switch spindle and provides the manual selection of boiler operating modes. It is supplied as a single knob.
Signs this part needs replacing
- The knob is cracked, split or has broken away from its spindle
- The knob turns freely without operating the selector switch
- The knob is loose and slips on the spindle instead of turning the switch
- The knob is missing, making the selector switch difficult to operate
- The knob is stiff, jammed or will not rotate through its full travel
Before you order
- Check the boiler model number against the fit list above before ordering
- Confirm the part number on the existing knob or in the manufacturer's parts list
- Note that several listed models are LPG variants, so check the fuel type of the appliance
Compliance
| Alternative numbers | KNOB-MAIN-SWITCH-252835C-KNOB-MAIN-SWITCH-252835C, 1258313 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA ALPHA CD28C EXTRA | — | — | — | |
| ALPHA ALPHA CD28C EXTRA LPG | — | — | — | |
| ALPHA ALPHA CD35C | — | — | — | |
| ALPHA ALPHA CD35C LPG | — | — | — | |
| ALPHA ALPHA GASSAVER GS-1 | — | — | — | |
| ALPHA ALPHA PREMIERPACK | — | — | — | |
| ALPHA CD12S | 41-532-16 | 41-532-16 | — | — |
| ALPHA CD12S (LPG) | 41-532-17 | 41-532-17 | — | — |
| ALPHA CD20S | 41-532-18 | 41-532-18 | — | — |
| ALPHA CD20S (LPG) | 41-532-19 | 41-532-19 | — | — |
Showing 10 of 24 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
ALPHA appliance manual — CD12S (GC 41-532-16), CD12S (LPG) (GC 41-532-17), CD20S (GC 41-532-18), CD20S (LPG) (GC 41-532-19), CD28S (GC 41-532-20), CD28S (LPG) (GC 41-532-21)
manualmanualALPHA appliance manual — CD25C (GC 47-532-31), CD25C (LPG) (GC 47-532-32), CD28C (GC 47-532-33), CD28C (LPG) (GC 47-532-34), CD28C EXTRA, CD28C EXTRA (LPG), CD35C (GC 47-532-35), CD35C (LPG) (GC 47-532-36)
manualmanualALPHA appliance manual — CD25X (GC 47-532-39), CD25X (LPG) (GC 47-532-40), CD28X (GC 47-532-37), CD28X (LPG) (GC 47-532-38)
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