Alpha
Alpha Printed Circuit Board CB HE Models 1.025576
Alpha printed circuit board 1.025576 for CB and CB HE combi boilers, compatible with 28 Alpha appliances including CB24, CB24X, CB28, CB28X and HE CB25.
At a glance
- Part type: Printed circuit board
- Appliance family: Alpha CB and CB HE combi boilers
- Also known as 1250354
£266.76
£222.30 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 printed circuit board, part 1.025576, is the main control board fitted to Alpha CB and CB HE combi boilers. It handles ignition sequencing, fan and pump control, temperature sensing and the boiler's safety interlocks, and it reports fault codes to the display. This is the current Alpha board for the CB HE models listed in the compatibility table.
Signs this part needs replacing
- The boiler does not fire or does not respond to a heating or hot water demand
- Blank display or no LEDs lit on the control panel
- Repeated lockouts, or fault codes that clear only after a power cycle
- Fan, pump or diverter valve not operating when called for
- Intermittent running that changes as the board warms up
Before you order
- Check the GC number and model on the boiler data badge against the compatibility list below.
- Compare the board currently fitted with the previous part numbers listed above before ordering.
Mechanical
| Part type | Printed circuit board |
|---|---|
| Appliance family | Alpha CB and CB HE combi boilers |
Compliance
| Manufacturer part number (MPN) | 1.025576 |
|---|---|
| GC number | H28-383 |
| Barcode / EAN | 8015065396274 |
| Commodity code | 8537 10 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 1.015405, 1.017118, 1.022170, 1250354 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA ALPHA CB24 | — | — | — | |
| ALPHA ALPHA CB24X | — | — | — | |
| ALPHA ALPHA CB28 | — | — | — | |
| ALPHA ALPHA CB28X | — | — | — | |
| ALPHA ALPHA HE CB25 | — | — | — | |
| ALPHA ALPHA HE CB33 | — | — | — | |
| ALPHA ALPHA HE SY25 | — | — | — | |
| ALPHA ALPHA SY24 | — | — | — | |
| ALPHA CB24 | 47-532-15 | 47-532-15 | — | — |
| ALPHA CB24 (LPG) | — | — | — |
Showing 10 of 28 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 — CB24 (GC 47-532-15), CB24 (LPG), CB24X (GC 47-532-14), CB24X (LPG), CB28 (GC 47-532-16), CB28 (LPG), CB28X (GC 47-532-17), CB28X (LPG)
manualmanualALPHA appliance manual — HE CB25 (GC 47-532-25), HE CB25 (LPG) (GC 47-532-27), HE CB33 (GC 47-532-26), HE CB33 (LPG) (GC 47-532-44), HE SY25 (GC 41-532-07), HE SY25 (LPG) (GC 41-532-12)
manualmanualALPHA appliance manual — HE25 (GC 47-532-41), HE25 (LPG) (GC 47-532-42), HE33 (GC 47-532-43), HE33 (LPG) (GC 47-532-44)
manualmanualALPHA appliance manual — SY24 (GC 41-532-01), SY24 (LPG)
manualNo technical questions yet for this part.
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