Glow-worm
Glow-worm Interface Card CI CXI HXI SI GLOWWORM0020027897
At a glance
- Part type: Interface card
- Appliance family: CI, CXI, HXI, SI
- Also known as 1331473, N7950, GLOWWORM0020027897
£250.63
£208.86 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 Glow-worm 0020027897 is an interface card used across the CI, CXI, HXI and SI appliance family. It forms the link between the appliance's main control board and the user controls, carrying the signals that tell the boiler when to fire for heating and hot water. It is supplied as a service replacement part, so a failed card can be swapped without changing the main PCB.
Signs this part needs replacing
- The appliance does not respond to heating or hot water demand from the controls
- Fault or error codes relating to communication between the control board and the interface
- A display or control panel that is blank, erratic or unresponsive
- Intermittent operation that clears after a power cycle but returns
- The appliance fires but ignores programmed settings or timer commands
Before you order
- Confirm the part number on the existing card matches 0020027897 before ordering
- Check the appliance model and GC number on the data badge
- Isolate the electrical supply at the fused spur before removing or fitting the card
- Note the wiring connections and card orientation before disconnecting the old part
Mechanical
| Part type | Interface card |
|---|---|
| Appliance family | CI, CXI, HXI, SI |
Compliance
| Manufacturer part number (MPN) | 0020027897 |
|---|---|
| GC number | E91-954 |
| Barcode / EAN | 0020027897 |
| Commodity code | 8537 10 00 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | GLOWWORM0020027897, 1331473, N7950 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM BRITISH GAS BG330 | 41-047-75 | 41-047-75 | — | — |
| GLOWWORM GLOWWORM GW 12HXI | — | — | — | |
| GLOWWORM GLOWWORM GW 15HXI | — | — | — | |
| GLOWWORM GLOWWORM GW 18HXI | — | — | — | |
| GLOWWORM GLOWWORM GW 18SI | — | — | — | |
| GLOWWORM GLOWWORM GW 24CI | — | — | — | |
| GLOWWORM GLOWWORM GW 24CXI | — | — | — | |
| GLOWWORM GLOWWORM GW 24HXI | — | — | — | |
| GLOWWORM GLOWWORM GW 30CI | — | — | — | |
| GLOWWORM GLOWWORM GW 30HXI | — | — | — |
Showing 10 of 32 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.
GLOWWORM appliance manual — BRITISH GAS BG330 (GC 41-047-75)
manualmanualGLOWWORM appliance manual — GW 12HXi (GC 41-047-73)
manualmanualGLOWWORM appliance manual — GW 15HXi (GC 41-047-74)
manualmanualGLOWWORM appliance manual — GW 18HXi (GC 41-047-63)
manualmanualGLOWWORM appliance manual — GW 18SXi (GC 41-047-72)
manualmanualGLOWWORM appliance manual — GW 18Si (GC 41-047-61)
manualmanualGLOWWORM appliance manual — GW 24CXi (GC 47-047-23)
manualmanualGLOWWORM appliance manual — GW 24Ci (GC 47-047-19)
manualmanualGLOWWORM appliance manual — GW 24HXi (GC 41-047-69)
manualmanualGLOWWORM appliance manual — GW 30CXi (GC 47-047-24)
manualmanualGLOWWORM appliance manual — GW 30Ci (GC 47-047-20)
manualmanualGLOWWORM appliance manual — GW 30HXi (GC 41-047-64)
manualmanualGLOWWORM appliance manual — GW 30SXi (GC 41-047-62)
manualmanualGLOWWORM appliance manual — GW 30Si (GC 41-047-70)
manualmanualGLOWWORM appliance manual — GW 35Ci (GC 47-047-28)
manualmanualGLOWWORM appliance manual — GW 38CXi (GC 47-047-27)
manualmanualGLOWWORM appliance manual — GW 38HXi (GC 41-047-71)
manualmanualGLOWWORM appliance manual — XTRAMAX HE (GC 47-047-29)
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