Halstead
Halstead Diverter Valve Diaphragm 840505
Diverter valve diaphragm for Halstead Ace, Finest and Wickes Combi gas boilers, part number 840505.
At a glance
- Also known as 1293466, N0243
£81.38
£67.82 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 Halstead diverter valve diaphragm is a component of the diverter valve assembly used across the Halstead Ace, Finest and Wickes Combi boiler ranges. It forms part of the valve that switches water flow between the central heating circuit and the domestic hot water circuit. This diaphragm is supplied under Halstead part number 840505.
Signs this part needs replacing
- No hot water, or hot water only available when the central heating is switched off
- Central heating operating when only hot water is demanded
- Radiators warming up during a hot water draw-off
- Fluctuating or inconsistent domestic hot water temperature
- Water leaking from the diverter valve assembly
Before you order
- Confirm the boiler model and serial number prefix against the Fits list above.
- Check the part number on the existing diaphragm or valve assembly where visible.
- Inspect the diverter valve body for debris or scale that may have caused the diaphragm to fail.
Compliance
| GC number | E23-663 |
|---|---|
| Alternative numbers | 1293466, N0243 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HALSTEAD ACE FROM AC100000131 | 47-333-10 | 47-333-10 | — | — |
| HALSTEAD ACE HIGH | 47-333-16 | 47-333-16 | — | — |
| HALSTEAD ACE TO AC100000131 | 47-333-15 | 47-333-15 | — | — |
| HALSTEAD FINEST FROM FGX500000131 | 47-333-12 | 47-333-12 | — | — |
| HALSTEAD FINEST GOLD FROM FGX500000131 | 47-333-13 | 47-333-13 | — | — |
| HALSTEAD FINEST GOLD UP TO FG500000131 | 47-333-07 | 47-333-07 | — | — |
| HALSTEAD FINEST UP TO FG500000131 | 47-333-06 | 47-333-06 | — | — |
| HALSTEAD WICKES 90 | 47-333-09 | 47-333-09 | — | — |
| HALSTEAD WICKES COMBI 102 | 47-333-18 | 47-333-18 | — | — |
| HALSTEAD WICKES COMBI 82 | 47-333-17 | 47-333-17 | — | — |
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.
HALSTEAD appliance manual — ACE FROM AC100000131 (GC 47-333-10)
manualmanualHALSTEAD appliance manual — ACE HIGH (GC 47-333-16), ACE TO AC100000131 (GC 47-333-15)
manualmanualHALSTEAD appliance manual — FINEST FROM FGX500000131 (GC 47-333-12)
manualmanualHALSTEAD appliance manual — FINEST GOLD FROM FGX500000131 (GC 47-333-13)
manualmanualHALSTEAD appliance manual — FINEST GOLD UP TO FG500000131 (GC 47-333-07)
manualmanualHALSTEAD appliance manual — FINEST UP TO FG500000131 (GC 47-333-06)
manualNo technical questions yet for this part.
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