Johnson & Starley
Johnson & Starley Main Injector BOS01204/4
Main injector for Johnson & Starley warm air units and associated water heaters, listed as the Bray 23/700 injector.
At a glance
- Also known as 1690244
Showing prices
£15.66
£13.05 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 the main injector for Johnson & Starley warm air units and their associated water heaters. Johnson & Starley lists it as the Bray 23/700 injector, supplied under part number BOS01204/4.
Signs this part needs replacing
- Burner fails to light, or lights intermittently
- Flame is weak, uneven or lifts away from the burner
- Heat output is reduced or fluctuates
- Sooting, or a yellow lazy flame at the burner
- Visible debris or blockage at the injector orifice
Before you order
- Check the appliance data plate for the model and variant (Mk3, MAF or MAF VI) and confirm it appears in the fits list.
- Compare the marking on the existing injector against the Bray 23/700 reference.
- Confirm the injector reference matches the appliance data plate before ordering.
Compliance
| Alternative numbers | 1690244 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| JOHNSON & STARLEY BALMFORTH / MCLARY BD50- TD35-50 - TD50-60 WARM AIR UNIT | — | — | — | |
| JOHNSON & STARLEY BALMFORTH / MCLARY D40-60 - U40-60 WARM AIR UNIT | 43-306-01 | 43-306-01 | — | — |
| JOHNSON & STARLEY BALMFORTH / MCLARY D60-80 WARM AIR UNIT | 42-306-40 | 42-306-40 | — | — |
| JOHNSON & STARLEY ECONOMAIRE 90 WARM AIR UNIT | 42-416-19 | 42-416-19 | — | — |
| JOHNSON & STARLEY HISPEC J90 WARM AIR UNIT | 42-451-15 | 42-451-15 | — | — |
| JOHNSON & STARLEY J15-22 WARM AIR UNIT - JANUS WATER HEATER | 43-416-23 | 43-416-23 | — | — |
| JOHNSON & STARLEY J15-22 MAF WARM AIR UNIT - JANUS WATER HEATER | 43-416-25 | 43-416-25 | — | — |
| JOHNSON & STARLEY J15-22 MAF WARM AIR UNIT | 42-417-03 | 42-417-03 | — | — |
| JOHNSON & STARLEY J15-22 MK3 WARM AIR UNIT - JANUS WATER HEATER | 43-416-27 | 43-416-27 | — | — |
| JOHNSON & STARLEY J15-22 MK3 MAF VI WARM AIR UNIT | 42-417-22 | 42-417-22 | — | — |
Showing 10 of 41 compatible appliances.
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 — BALMFORTH / MCLARY BD50- TD35-50 - TD50-60 WARM AIR UNIT
manualmanualJOHNSON & STARLEY appliance manual — BALMFORTH / MCLARY D40-60 - U40-60 WARM AIR UNIT (GC 43-306-01), BALMFORTH / MCLARY D60-80 WARM AIR UNIT (GC 42-306-40)
manualmanualJOHNSON & STARLEY appliance manual — ECONOMAIRE 90 WARM AIR UNIT (GC 42-416-19)
manualmanualJOHNSON & STARLEY appliance manual — HISPEC J90 WARM AIR UNIT (GC 42-451-15)
manualmanualJOHNSON & STARLEY appliance manual — J15-22 WARM AIR UNIT - JANUS WATER HEATER (GC 43-416-23), J15-22 MAF WARM AIR UNIT - JANUS WATER HEATER (GC 43-416-25), J15-22 MAF WARM AIR UNIT (GC 42-417-03), J15-22 MK3 WARM AIR UNIT - JANUS WATER HEATER (GC 43-416-27), J15-22 MK3 MAF VI WARM AIR UNIT (GC 42-417-22), J15-22 MK3 MAF VI WARM AIR UNIT - JANUS WATER HEATER (GC 43-416-41), J15-22 MK3 MAF WARM AIR UNIT (GC 42-417-09), J15-22 MK3 WARM AIR UNIT (GC 42-417-07), J15-22 Mk3 WARM AIR UNIT - ELJAN WATER HEATER (GC 43-416-69), J15-22 Mk3 WARM AIR UNIT - HIJAN WATER HEATER (GC 43-416-84), J15-22 Mk3 MAF VI WARM AIR UNIT - ELJAN WATER HEATER (GC 43-416-71), J15-22 Mk3 MAF VI WARM AIR UNIT - HIJAN WATER HEATER (GC 43-416-86), J15-22 WARM AIR UNIT (GC 42-417-01)
manualmanualJOHNSON & STARLEY appliance manual — J15-22R WARM AIR UNIT - JANUS WATER HEATER (GC 43-416-24), J15-22R MAF WARM AIR UNIT (GC 42-417-04), J15-22R MAF WARM AIR UNIT - JANUS WATER HEATER (GC 43-416-26), J15-22R MK3 MAF VI WARM AIR UNIT (GC 42-417-23), J15-22R MK3 MAF WARM AIR UNIT (GC 42-417-10), J15-22R MK3 MAF WARM AIR UNIT - JANUS WATER HEATER (GC 43-416-30), J15-22R MK3 WARM AIR UNIT (GC 42-417-08), J15-22R MK3 WARM AIR UNIT - JANUS WATER HEATER (GC 43-416-28), J15-22R Mk3 WARM AIR UNIT - ELJAN WATER HEATER (GC 43-416-72), J15-22R Mk3 WARM AIR UNIT - HIJAN WATER HEATER (GC 43-416-87), J15-22R Mk3 MAF VI WARM AIR UNIT - ELJAN WATER HEATER (GC 43-416-74), J15-22R Mk3 MAF VI WARM AIR UNIT - HIJAN WATER HEATER (GC 43-416-89), J15-22R WARM AIR UNIT (GC 42-417-02)
manualmanualJOHNSON & STARLEY appliance manual — JB40-50 WARM AIR UNIT (GC 42-417-65)
manualNo technical questions yet for this part.
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