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Glow-worm printed circuit board 0020058975

Glow-worm

Glow-worm printed circuit board 0020058975

Genuine Glow-worm main control PCB that monitors the boiler's thermostats, switches and sensors and enforces its safety shutdowns.

At a glance

  • Fitting must be carried out by a Gas Safe registered engineer
Manufacturer part no.
GLOWWORM0020058975
Showing prices

£352.80

£294.00 ex. VAT · VAT at 20%

In stock
Order within 4m for same-day dispatch
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 0020058975 is a genuine printed circuit board (PCB) that acts as the boiler's central control. It continuously checks the thermostats, switches and sensors, and enforces the appliance's safety parameters, shutting it down if a fault is detected.

Signs this part needs replacing

  • Boiler stops responding to the thermostat or programmer
  • Random lockouts or fault codes with no clear cause
  • Display blank or unresponsive
  • Boiler resets but the same fault keeps recurring

Before you order

  • Match the part number on your existing board exactly to 0020058975
  • Confirm the board is the fault before ordering — PCBs are usually non-returnable once the seal is broken
  • Isolate electrical power fully before removal
  • Fitting must be carried out by a Gas Safe registered engineer

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.