Saunier Duval
Saunier Duval Resistor Micro Accu S1025100
Micro accu resistor for the Saunier Duval Isofast Condens F35E, fitted before serial number 0400446159.
At a glance
- Appliance family: Isofast Condens
- Also known as 1420575
£71.00
£59.17 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 micro accu resistor is a Saunier Duval component used in the micro accumulator circuit of the Isofast Condens F35E condensing boiler. It forms part of the appliance's electronic control and sensing arrangement, where its resistance value is used by the control board. The part is supplied under Saunier Duval part number S1025100.
Signs this part needs replacing
- The boiler locks out or fails to complete its ignition sequence
- Intermittent faults that clear on reset but return
- Resistance measured across the component falls outside the expected value
- Visible discolouration, scorching or heat damage on the resistor body or its connections
- Fault persists after the associated wiring and connections have been checked
Before you order
- Confirm the appliance is an Isofast Condens F35E and that its serial number is before 0400446159
- Check the part number printed or marked on the existing component against S1025100
- Verify the fault lies with the resistor rather than the control board or its wiring before ordering
Compliance
| Alternative numbers | 1420575 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SAUNIER DUVAL ISOFAST CONDENS F35E - BEFORE SERIAL No 0400446159 | 47-920-46 | 47-920-46 | — | — |
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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