Johnson & Starley
Johnson & Starley J54-64 electronic panel S00077
Genuine Johnson & Starley electronic panel (MAF), part number S00077, for J54-64 warm air heaters.
At a glance
- Part type: Electronic panel (MAF)
- Also known as 1691523
- Have the work carried out by a Gas Safe registered engineer
Showing prices
£413.44
£344.53 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
This is Johnson & Starley's electronic panel, part number S00077 (previously coded BOS01250), fitted to the J54-64 range. It is the appliance's control panel electronics, managing ignition and safety functions.
Signs this part needs replacing
- Appliance will not respond to controls or displays no activity
- Intermittent lockouts with no clear fault pattern
- Appliance fails to ignite despite other components testing correctly
- Indicator lights behaving erratically
Before you order
- Confirm the part number printed on your existing panel matches S00077
- Check your exact J54-64 variant and GC number against the fitment list above
- Isolate electrical power before removing the old panel
- Have the work carried out by a Gas Safe registered engineer
Compliance
| GC number | 232-734 |
|---|---|
| Alternative numbers | 1691523 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| JOHNSON & STARLEY J54-64 MAF VI WARM AIR UNIT | 42-417-28 | 42-417-28 | — | — |
| JOHNSON & STARLEY J54-64 MAF VI WARM AIR UNIT - JANUS WATER HEATER | 43-416-47 | 43-416-47 | — | — |
| JOHNSON & STARLEY J54-64 MAF WARM AIR UNIT | 42-416-82 | 42-416-82 | — | — |
| JOHNSON & STARLEY J54-64 MAF WARM AIR UNIT - JANUS WATER HEATER | 43-416-16 | 43-416-16 | — | — |
| JOHNSON & STARLEY J54-64 WARM AIR UNIT | 42-416-70 | 42-416-70 | — | — |
| JOHNSON & STARLEY JOHNSON AND STARLEY J54-64 | — | — | — |
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
manual
JOHNSON & STARLEY appliance manual — J54-64 MAF VI WARM AIR UNIT (GC 42-417-28), J54-64 MAF VI WARM AIR UNIT - JANUS WATER HEATER (GC 43-416-47), J54-64 MAF WARM AIR UNIT - JANUS WATER HEATER (GC 43-416-16), J54-64 WARM AIR UNIT (GC 42-416-70)
manualmanualJOHNSON & STARLEY appliance manual — J54-64 MAF WARM AIR UNIT (GC 42-416-82)
manualNo technical questions yet for this part.
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