Alpha
Alpha heat exchanger sump 3.025435
Genuine Alpha heat exchanger sump for the Eco²/InTec² boiler range, part number 3.025435.
At a glance
- Also known as 1258683
- Heat exchanger replacement should be carried out by a competent Gas Safe registered engineer
£65.34
£54.45 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 heat exchanger sump is the lower condensate-collecting section of the primary heat exchanger assembly. It is a genuine Alpha part, number 3.025435, listed by the manufacturer as a heat exchanger sump.
Signs this part needs replacing
- Reduced heat output or the boiler locking out on a high-limit thermostat fault
- Sooting, scaling or blockage visible on the heat exchanger
- Water leaking from the heat exchanger body or its seals
Before you order
- This is a specialist repair; confirm the fault with a full diagnostic before ordering
- Isolate power, gas and water supplies before removing the heat exchanger
- Heat exchanger replacement should be carried out by a competent Gas Safe registered engineer
Compliance
| Alternative numbers | HEAT-EXCHANGER-SUMP, 1258683 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA ALPHA ECO 2 | — | — | — | |
| ALPHA ALPHA ECO 2 BOILER | 47-532-60 | 47-532-60 | — | — |
| ALPHA ALPHA ECO 2 PLUS | — | — | — | |
| ALPHA ALPHA ECO 2 PLUS BOILER | 47-532-63 | 47-532-63 | — | — |
| ALPHA ALPHA InTEC 2 20SE | — | — | — | |
| ALPHA ALPHA InTEC 2 25X | — | — | — | |
| ALPHA ALPHA InTEC 2 25XE | — | — | — | |
| ALPHA ALPHA InTEC 2 26CE | — | — | — | |
| ALPHA ALPHA InTEC 2 28X | — | — | — | |
| ALPHA ALPHA InTEC 2 28XE | — | — | — |
Showing 10 of 22 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 — ALPHA ECO 2 BOILER (GC 47-532-60)
manualmanualALPHA appliance manual — ALPHA ECO 2 PLUS BOILER (GC 47-532-63)
manualmanualALPHA appliance manual — InTEC 2 20SE (GC 41-532-28), InTEC 2 30SE (GC 41-532-29)
manualmanualALPHA appliance manual — InTEC 2 25X (GC 47-532-61), InTEC 2 28X (GC 47-532-62)
manualmanualALPHA appliance manual — InTEC 2 25XE, InTEC 2 28XE
manualmanualALPHA appliance manual — InTEC 2 26CE (GC 47-532-66), InTEC 2 30CE (GC 47-532-67), InTEC 2 35CE (GC 47-532-68)
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