Baxi
Baxi 3-Way Cartridge 7661857
Baxi 7661857 three-way cartridge for 224, 228, 424 and 428 ErP combi boilers.
At a glance
- Part type: three-way cartridge for the diverter valve assembly
- Also known as 1132193
£69.36
£57.80 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 Baxi 7661857 is a three-way cartridge used in the diverter valve assembly of Baxi ErP combi boilers. It directs the flow of heated primary water between the central heating circuit and the domestic hot water plate heat exchanger. The cartridge sits inside the valve body and is the moving component that switches the boiler between heating and hot water modes.
Signs this part needs replacing
- Hot water runs lukewarm or cold while the heating continues to work
- Radiators heat up when only hot water is demanded
- No hot water at the tap despite the boiler firing on a hot water call
- Domestic hot water temperature fluctuates or drops away during use
- The diverter valve body is leaking from around the cartridge spindle
Before you order
- Confirm your boiler is the ErP version of the 224, 228, 424 or 428 combi
- Check the part number on the existing cartridge or valve assembly matches 7661857
- Isolate the boiler, drain down and confirm the valve body itself is sound before fitting a new cartridge
- Inspect the valve body and seals for scale or debris, as contamination is a common cause of cartridge failure
Compliance
| Alternative numbers | 1132193 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI 224 ErP COMBI | 47-077-21 | 47-077-21 | — | — |
| BAXI 228 ErP COMBI | 47-077-22 | 47-077-22 | — | — |
| BAXI 424 ErP COMBI | 47-077-23 | 47-077-23 | — | — |
| BAXI 428 ErP COMBI | 47-077-24 | 47-077-24 | — | — |
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.
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