Glow-Worm S900817 Printed Circuit Board | Genuine Replacement Spare Part
- SKU
- EDDGLOWWORM098
Our Expert's Opinion
"A manufacturer approved PCB that orchestrates the boiler’s essential control logic and safety monitoring.”Glow-Worm S900817 Printed Circuit Board
The S900817 PCB is manufactured to precise OEM electrical and software specifications, guaranteeing correct logic mapping, signal timing, and compatibility with all sensors and actuators in the boiler’s system. The PCB acts as the central communication hub — if it misinterprets a sensor signal, delays a command, or outputs incorrect control voltages, the boiler can display fault codes, misfire, or go into protective lockout. Using an OEM‑specified board helps maintain designed response curves for temperature control, combustion modulation, and safety interlocks, preserving both performance and compliance with regulatory safety standards.
Over time, PCBs can fail due to electrical surges, moisture ingress, thermal stress, or component ageing. Symptoms of a compromised control board include intermittent operation, failure to ignite, erratic temperature behaviour, unresponsive controls, display errors, or complete system shutdown. Replacing a faulty PCB with this authentic Glow‑Worm part restores dependable system logic, enhances communication between components, and helps protect other parts from improper command sequences that could cause wear or damage. Because this module interfaces with high‑ and low‑voltage circuits and carries out safety‑critical functions, installation should always be performed by a Gas Safe registered engineer with electrical competence to ensure correct wiring, configuration, and compliance with boiler safety and performance requirements.
Glow-Worm provide a 1 year warranty on all spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
| MPN | S900817 |
|---|---|
| Product Code | EDDGLOWWORM098 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Glow-Worm |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
Glow-Worm S900817 Printed Circuit Board
The S900817 PCB is manufactured to precise OEM electrical and software specifications, guaranteeing correct logic mapping, signal timing, and compatibility with all sensors and actuators in the boiler’s system. The PCB acts as the central communication hub — if it misinterprets a sensor signal, delays a command, or outputs incorrect control voltages, the boiler can display fault codes, misfire, or go into protective lockout. Using an OEM‑specified board helps maintain designed response curves for temperature control, combustion modulation, and safety interlocks, preserving both performance and compliance with regulatory safety standards.
Over time, PCBs can fail due to electrical surges, moisture ingress, thermal stress, or component ageing. Symptoms of a compromised control board include intermittent operation, failure to ignite, erratic temperature behaviour, unresponsive controls, display errors, or complete system shutdown. Replacing a faulty PCB with this authentic Glow‑Worm part restores dependable system logic, enhances communication between components, and helps protect other parts from improper command sequences that could cause wear or damage. Because this module interfaces with high‑ and low‑voltage circuits and carries out safety‑critical functions, installation should always be performed by a Gas Safe registered engineer with electrical competence to ensure correct wiring, configuration, and compliance with boiler safety and performance requirements.
Glow-Worm provide a 1 year warranty on all spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
| MPN | S900817 |
|---|---|
| Product Code | EDDGLOWWORM098 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Glow-Worm |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
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