
Johnson & Starley
Johnson & Starley Fuse 1 Amp Glass 20mm 1000-0514230
1 amp glass fuse, 20 mm, for Johnson & Starley MAF warm air units.
At a glance
- Also known as 1690047
Showing prices
£3.86
£3.22 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 a 1 amp glass fuse, 20 mm, manufactured by Johnson & Starley for MAF models only. It is used in Johnson & Starley Hispec and related warm air units to protect the appliance's electrical circuit.
Signs this part needs replacing
- The fuse has blown, with a broken element or blackened glass visible.
- The appliance fails to power up or respond.
- No ignition, fan operation or control display.
- A continuity test across the fuse shows an open circuit.
- The fuse fails again after replacement, indicating a circuit fault.
Before you order
- Confirm the appliance is a Johnson & Starley MAF model.
- Check the existing fuse is rated at 1 amp and measures 20 mm.
- Isolate the appliance from the electrical supply before inspection.
- Verify the fuse holder and circuit for any underlying fault if the fuse has blown.
Compliance
| GC number | E02-428 |
|---|---|
| Alternative numbers | 1690047 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| JOHNSON & STARLEY HISPEC 20 WARM AIR UNIT | 42-451-03 | 42-451-03 | — | — |
| JOHNSON & STARLEY HISPEC J20 WARM AIR UNIT | 42-416-06 | 42-416-06 | — | — |
| JOHNSON & STARLEY HISPEC J30 WARM AIR UNIT | 42-416-05 | 42-416-05 | — | — |
| JOHNSON & STARLEY HISPEC J50 WARM AIR UNIT | 42-451-13 | 42-451-13 | — | — |
| JOHNSON & STARLEY HISPEC J65 WARM AIR UNIT | 42-451-14 | 42-451-14 | — | — |
| JOHNSON & STARLEY HISPEC J90 WARM AIR UNIT | 42-451-15 | 42-451-15 | — | — |
| JOHNSON & STARLEY HISPEC JU55 WARM AIR UNIT PROPANE | 42-416-09 | 42-416-09 | — | — |
| JOHNSON & STARLEY HISPEC JU55 WARM AIR UNIT | 42-511-16 | 42-511-16 | — | — |
| JOHNSON & STARLEY HR100 | — | — | — | |
| JOHNSON & STARLEY J55-65 WARM AIR UNIT | 42-417-68 | 42-417-68 | — | — |
Showing 10 of 23 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 — HISPEC J30 WARM AIR UNIT (GC 42-416-05)
manualmanualJOHNSON & STARLEY appliance manual — HISPEC J50 WARM AIR UNIT (GC 42-451-13)
manualmanualJOHNSON & STARLEY appliance manual — HISPEC J65 WARM AIR UNIT (GC 42-451-14)
manualmanualJOHNSON & STARLEY appliance manual — HISPEC J90 WARM AIR UNIT (GC 42-451-15)
manualmanualJOHNSON & STARLEY appliance manual — HISPEC JU55 WARM AIR UNIT PROPANE (GC 42-416-09), HISPEC JU55 WARM AIR UNIT (GC 42-511-16)
manualmanualJOHNSON & STARLEY appliance manual — HR100
manualmanualJOHNSON & STARLEY appliance manual — J55-65 WARM AIR UNIT (GC 42-417-68), JB40-50 WARM AIR UNIT (GC 42-417-65)
manualmanualJOHNSON & STARLEY appliance manual — J70-90 MK2 MAF WARM AIR UNIT (GC 42-417-71), J70-90 MK2 WARM AIR UNIT (GC 42-417-70)
manualNo technical questions yet for this part.
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