Johnson & Starley
Johnson & Starley Electronic Module SCS25 MAF 1000-0503880
Electronic module (MAF) for Johnson & Starley SCS 25 boilers, supplied under part number 1000-0503880.
At a glance
- Appliance family: SCS 25
- Also known as 1691506
£426.91
£355.76 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 electronic module (MAF) is a control component manufactured by Johnson & Starley for the SCS 25 boiler. It forms part of the appliance's electronic control assembly and is supplied under part number 1000-0503880.
Signs this part needs replacing
- Boiler fails to fire or does not complete its start sequence
- Repeated lockouts or fault codes traced to the control module
- Intermittent running or unexpected shutdowns
- No response from the boiler controls
Before you order
- Check the appliance data plate to confirm the model is SCS 25 or SCS 25 Mk1.
- Confirm the part number on the existing module matches 1000-0503880.
- Inspect the module's connections and mounting, as faults elsewhere in the circuit can mimic module failure.
Compliance
| Alternative numbers | 1691506 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| JOHNSON & STARLEY JOHNSON AND STARLEY SCS 25 | — | — | — | |
| JOHNSON & STARLEY SCS25 MK1 | 42-417-93 | 42-417-93 | — | — |
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
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