Baxi
Baxi 720878202 Printed Circuit Board
At a glance
- Part type: Printed circuit board
- Also known as BAXI720878202
Showing prices
£210.12
£175.10 ex. VAT · VAT at 20%
In stock
Cut-off passed — dispatches next working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Baxi 720878202 is a printed circuit board supplied by Baxi as a replacement control board for its standard water heater appliances. The board carries the control and sequencing electronics that manage ignition, temperature regulation and safety interlocks, so it sits at the centre of how the appliance responds to demand. It is a serviceable electronic spare rather than a mechanical component, and it is replaced as a complete board.
Signs this part needs replacing
- The appliance fails to fire or does not respond to a call for heat
- Repeated lockout or fault codes that clear only temporarily after a reset
- No display, dead indicator lights or a board that shows no sign of power
- Fan, pump or ignition sequences behaving erratically or running out of order
- Intermittent operation that traces back to the board after other components have been tested
Before you order
- Match the part number printed on the existing board against BAXI720878202 before ordering
- Check the appliance data badge for the model and GC number and confirm the board is the correct variant for that appliance
- Inspect the board connectors, loom and any seals disturbed during removal, and replace damaged items at the same time
- Confirm whether the replacement board requires any settings or parameters to be configured after fitting
Mechanical
| Part type | Printed circuit board |
|---|
Compliance
| Manufacturer part number (MPN) | BAXI720878202 |
|---|---|
| GC number | H90-487 |
| Commodity code | 8537 10 00 90 |
| GPC classification | Circuit Assemblies/Integrated Circuits |
| Alternative numbers | 5039177763673, BAXI720878202, BAXI720878202, BAXI720878202, 263272088412 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI 124 ErP COMBI - SERIAL NUMBER ENDING AC | 47-077-25 | 47-077-25 | — | — |
| BAXI 128 ErP COMBI - SERIAL NUMBER ENDING AC | 47-077-26 | 47-077-26 | — | — |
| BAXI DUO-TEC 2 COMBI 24 GA - LPG | 47-075-54 | 47-075-54 | — | — |
| BAXI DUO-TEC 2 COMBI 24 GA - NG | 47-075-54 | 47-075-54 | — | — |
| BAXI DUO-TEC 2 COMBI 28 GA - LPG | 47-075-55 | 47-075-55 | — | — |
| BAXI DUO-TEC 2 COMBI 28 GA - NG | 47-075-55 | 47-075-55 | — | — |
| BAXI DUO-TEC 2 COMBI 33 GA - LPG | 47-075-56 | 47-075-56 | — | — |
| BAXI DUO-TEC 2 COMBI 33 GA - NG | 47-075-56 | 47-075-56 | — | — |
| BAXI DUO-TEC 2 COMBI 40 GA - LPG | 47-075-57 | 47-075-57 | — | — |
| BAXI DUO-TEC 2 COMBI 40 GA - NG | 47-075-57 | 47-075-57 | — | — |
Showing 10 of 26 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
manual
BAXI appliance manual — 124 ErP COMBI - SERIAL NUMBER ENDING AC (GC 47-077-25), 128 ErP COMBI - SERIAL NUMBER ENDING AC (GC 47-077-26)
manualmanualBAXI appliance manual — DUO-TEC 2 COMBI 24 GA - LPG (GC 47-075-54), DUO-TEC 2 COMBI 24 GA - NG (GC 47-075-54), DUO-TEC 2 COMBI 28 GA - LPG (GC 47-075-55), DUO-TEC 2 COMBI 28 GA - NG (GC 47-075-55), DUO-TEC 2 COMBI 33 GA - LPG (GC 47-075-56), DUO-TEC 2 COMBI 33 GA - NG (GC 47-075-56), DUO-TEC 2 COMBI 40 GA - LPG (GC 47-075-57), DUO-TEC 2 COMBI 40 GA - NG (GC 47-075-57)
manualmanualBAXI appliance manual — MEGAFLO 2 SYSTEM 12 COMPACT GA (GC 41-075-70), MEGAFLO 2 SYSTEM 15 COMPACT GA (GC 41-075-71), MEGAFLO 2 SYSTEM 18 COMPACT GA (GC 41-075-72), MEGAFLO 2 SYSTEM 24 COMPACT GA (GC 41-075-73), MEGAFLO 2 SYSTEM 28 COMPACT GA (GC 41-075-74), MEGAFLO 2 SYSTEM 32 COMPACT GA (GC 41-075-75)
manualmanualBAXI appliance manual — NETA-TEC COMBI 24 GA (GC 47-075-51), NETA-TEC COMBI 28 GA (GC 47-075-52), NETA-TEC COMBI 33 GA (GC 47-075-53)
manualmanualBAXI appliance manual — NETA-TEC PLUS COMBI 24 GA (GC 47-075-64), NETA-TEC PLUS COMBI 28 GA (GC 47-075-65), NETA-TEC PLUS COMBI 33 GA (GC 47-075-66)
manualmanualPOTTERTON appliance manual — PROMAX ULTRA 24 COMBI ErP - SERIAL No. ENDING BC & CC (GC 47-393-54), PROMAX ULTRA 28 COMBI ErP - SERIAL No. ENDING BC & CC (GC 47-393-55), PROMAX ULTRA 33 COMBI ErP - SERIAL No. ENDING BC & CC (GC 47-393-56), PROMAX ULTRA 40 COMBI ErP - SERIAL No. ENDING BC & CC (GC 47-393-57)
manualNo technical questions yet for this part.
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