Johnson & Starley
Johnson & Starley Pilot Assembly ASD 1000-0704255
Pilot assembly (A.S.D.) for Johnson & Starley Hispec and Jb/Jt warm air units, part number 1000-0704255.
At a glance
- Also known as 1690731
£62.69
£52.24 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 pilot assembly (A.S.D.) is a Johnson & Starley pilot burner component, supplied under part number 1000-0704255. It forms part of the ignition and flame-proving arrangement on Johnson & Starley warm air units, providing the standing pilot flame that the appliance's safety circuit monitors. It is listed in the pilot burners category of Johnson & Starley gas appliance spares.
Signs this part needs replacing
- The pilot flame fails to light or lights only intermittently
- The pilot flame lights but will not hold, and the appliance locks out
- The pilot flame is weak, unstable or noticeably yellow rather than a steady blue
- Soot, discolouration or heat damage visible around the pilot burner and its electrode
- Repeated nuisance shutdowns traced to the pilot flame-proving circuit
Before you order
- Confirm your appliance model against the fitment list above before ordering
- Check the part number on the existing pilot assembly matches 1000-0704255
- Verify whether your unit requires the A.S.D. variant of the pilot assembly
- Isolate the gas and electrical supply before removing or fitting any pilot component
Compliance
| GC number | 379-873 |
|---|---|
| Alternative numbers | 1690731 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| JOHNSON & STARLEY HISPEC J25 WARM AIR UNIT | 42-451-04 | 42-451-04 | — | — |
| JOHNSON & STARLEY HISPEC J40 WARM AIR UNIT | 42-451-09 | 42-451-09 | — | — |
| JOHNSON & STARLEY JB16-20 WARM AIR UNIT | 42-416-94 | 42-416-94 | — | — |
| JOHNSON & STARLEY JB25-30 MAF WARM AIR UNIT | 42-417-64 | 42-417-64 | — | — |
| JOHNSON & STARLEY JB25-30 WARM AIR UNIT | 42-417-44 | 42-417-44 | — | — |
| JOHNSON & STARLEY JOHNSON AND STARLEY HISPEC J25 | — | — | — | |
| JOHNSON & STARLEY JOHNSON AND STARLEY HISPEC J40 | — | — | — | |
| JOHNSON & STARLEY JOHNSON AND STARLEY JB25-30 | — | — | — | |
| JOHNSON & STARLEY JOHNSON AND STARLEY JT19-25MK2 | — | — | — | |
| JOHNSON & STARLEY JOHNSON AND STARLEY TEST RIG | — | — | — |
Showing 10 of 11 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.
JOHNSON & STARLEY appliance manual — HISPEC J25 WARM AIR UNIT (GC 42-451-04)
manualmanualJOHNSON & STARLEY appliance manual — HISPEC J40 WARM AIR UNIT (GC 42-451-09)
manualmanualJOHNSON & STARLEY appliance manual — JB16-20 WARM AIR UNIT (GC 42-416-94), JB25-30 MAF WARM AIR UNIT (GC 42-417-64), JB25-30 WARM AIR UNIT (GC 42-417-44)
manualmanualJOHNSON & STARLEY appliance manual — JT19-25 Mk2 WARM AIR UNIT (GC 42-417-38)
manualNo technical questions yet for this part.
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