Glow-worm
Glow-worm Printed Circuit Board Micron 60 70 80 GLOWWORM2000801991
At a glance
- Part type: printed circuit board (PCB)
- Appliance family: Micron 60, 70 and 80 FF
- Also known as GLOWWORM2000801991
Showing prices
£320.93
£267.44 ex. VAT · VAT at 20%
In stock
Cut-off passed — dispatches next working day
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
The Glow-worm printed circuit board (PCB) is the control board used in Micron 60, 70 and 80 FF boilers. It governs ignition sequencing, flame supervision, fan and pump operation, and the boiler's response to heating and hot water demand. The board is supplied under part number 2000801991, also listed as 801991.
Signs this part needs replacing
- Boiler fails to fire, or repeatedly goes to lockout with no obvious external cause
- No response to heating or hot water demand, or the boiler runs only intermittently
- Fan, pump or ignition sequence behaves erratically or stops part-way through a cycle
- Repeated fuse failure, or visible scorching, corrosion or track damage on the board
- Fault codes or diagnostic indicators pointing to control board failure
Before you order
- Confirm the boiler model and the part number printed on the existing board
- Check the alternative number 801991 against the board being replaced
- Isolate the electrical supply before removing or fitting the board
- Inspect the wiring harness and connectors for damage before refitting
Mechanical
| Part type | Printed Circuit Board |
|---|---|
| Appliance family | Micron 60, 70 and 80 FF |
Compliance
| Manufacturer part number (MPN) | 2000801991 |
|---|---|
| GC number | E24-970 |
| Commodity code | 8537 10 90 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | GLOWWORM2000801991, 1331565 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM GLOWWORM MICRON 60FF | — | — | — | |
| GLOWWORM GLOWWORM MICRON 70FF | — | — | — | |
| GLOWWORM GLOWWORM MICRON 80FF | — | — | — | |
| GLOWWORM MICRON 60FF | 41-047-19 | 41-047-19 | — | — |
| GLOWWORM MICRON 70FF | 41-047-20 | 41-047-20 | — | — |
| GLOWWORM MICRON 80FF | 41-047-21 | 41-047-21 | — | — |
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.
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