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EOGB ZT931 1mm Ignition Transformer

EOGB

EOGB ZT931 1mm Ignition Transformer

EOGB ZT931 1 mm ignition transformer for Honeywell Satronic boiler applications.

Manufacturer part no.
S01-13131U
Showing prices

£206.29

£171.91 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

The ZT931 1mm ignition transformer is an EOGB ignition component for boiler applications. It supplies the high-voltage spark that lights the burner on demand. This unit is listed for use across the EOGB Honeywell - Satronic range.

Signs this part needs replacing

  • The burner fails to light and the control box goes to lockout
  • No spark is visible at the electrode when the appliance is calling for heat
  • Ignition is intermittent, with the burner lighting on some attempts and not others
  • The transformer shows signs of heat damage, arcing or a cracked housing

Before you order

  • Check the markings on the existing transformer against ZT931 to confirm the unit
  • Confirm the 1 mm dimension on the existing part matches this item
  • Verify the appliance make and model against the fitment list before ordering
  • Isolate the electrical supply to the appliance before removing the old transformer

Not sure which part?

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