Halstead
Halstead DHW Diaphragm Chamber 500594
Halstead DHW diaphragm chamber, part 500594, for ACE, Finest and Wickes combi boilers.
At a glance
- Also known as 1292402, N1519
£226.39
£188.66 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 DHW diaphragm chamber, part number 500594, is a water section component used in Halstead domestic gas boilers. The diaphragm inside the chamber responds to changes in water pressure when a hot tap is opened, operating the boiler's domestic hot water demand mechanism. It is also listed as a sanitary diaphragm chamber.
Signs this part needs replacing
- Boiler does not fire when a hot tap is opened
- Hot water runs cold or fluctuates between hot and cold
- Reduced or inconsistent domestic hot water flow
- Water weeping from the diaphragm chamber or surrounding water section
- Diaphragm visibly split, stretched or perished on inspection
Before you order
- Confirm the appliance model and serial number fall within the ranges listed in the Fits section
- Check the existing component against Halstead part number 500594
- Inspect the diaphragm and chamber housing for damage before fitting
- Isolate the boiler from the water and gas supply before starting work
Compliance
| GC number | E23-638 |
|---|---|
| Alternative numbers | 1292402, N1519 |
| 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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