Saunier Duval
Saunier Duval Float Syphon S1056700
Float syphon S1056700 for Saunier Duval Enviroplus, Isofast Condens and Isotwin Condens boilers.
At a glance
- Also known as 1420655
£9.22
£7.68 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 float syphon S1056700 is a Saunier Duval component that forms part of the condensate syphon assembly on the Enviroplus, Isofast Condens and Isotwin Condens boiler families. The float sits within the syphon chamber and works with the syphon body to manage the discharge of condensate from the appliance. It is supplied as an individual component.
Signs this part needs replacing
- Water weeping or dripping from the condensate syphon area
- Condensate pooling inside or beneath the boiler casing
- Gurgling or bubbling noises from the syphon during operation
- Boiler locking out or failing to run on a condensate-related fault
- Syphon chamber not emptying as expected between cycles
Before you order
- Confirm the boiler model against the fitment list above
- On an Isofast Condens F35E, check the appliance serial number against the 0400446159 break
- Compare the part number marked on the existing float with S1056700
- Inspect the syphon body and seals while the assembly is open, as these may also need attention
Compliance
| Alternative numbers | 1420655 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SAUNIER DUVAL ENVIROPLUS F24E | 47-920-45 | 47-920-45 | — | — |
| SAUNIER DUVAL ENVIROPLUS F24E - UPTO DECEMBER 2005 | 47-920-45 | 47-920-45 | — | — |
| SAUNIER DUVAL ENVIROPLUS F28E | 47-920-39 | 47-920-39 | — | — |
| SAUNIER DUVAL ENVIROPLUS F28E - UPTO DECEMBER 2005 | 47-920-39 | 47-920-39 | — | — |
| SAUNIER DUVAL ENVIROPLUS F28E SB | 41-920-37 | 41-920-37 | — | — |
| SAUNIER DUVAL ISOFAST CONDENS F35E - AFTER SERIAL No 0400446159 | 47-920-46A | 47-920-46A | — | — |
| SAUNIER DUVAL ISOFAST CONDENS F35E - BEFORE SERIAL No 0400446159 | 47-920-46 | 47-920-46 | — | — |
| SAUNIER DUVAL ISOTWIN CONDENS F35E | 47-920-47 | 47-920-47 | — | — |
| SAUNIER DUVAL SAUNIER DUVAL ENVIROPLUS F24E | — | — | — | |
| SAUNIER DUVAL SAUNIER DUVAL ENVIROPLUS F28E | — | — | — |
Showing 10 of 13 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.
SAUNIER DUVAL appliance manual — ENVIROPLUS F24E (GC 47-920-45), ENVIROPLUS F24E - UPTO DECEMBER 2005 (GC 47-920-45), ENVIROPLUS F28E (GC 47-920-39), ENVIROPLUS F28E - UPTO DECEMBER 2005 (GC 47-920-39), ENVIROPLUS F28E SB (GC 41-920-37)
manualmanualSAUNIER DUVAL appliance manual — ISOFAST CONDENS F35E - AFTER SERIAL No 0400446159 (GC 47-920-46A), ISOFAST CONDENS F35E - BEFORE SERIAL No 0400446159 (GC 47-920-46)
manualmanualSAUNIER DUVAL appliance manual — ISOTWIN CONDENS F35E (GC 47-920-47)
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