EOGB
EOGB Transformer ZT931
EOGB ZT931 230V gas ignition transformer with 4mm connections for Honeywell and Satronic burner controls.
£140.40
£117.00 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 ZT931 is a 230V transformer supplied by EOGB for gas burner and boiler applications. It carries 4mm connections and is used within the EOGB, Honeywell and Satronic control family. Its function is to step up the supply voltage to feed the ignition circuit on the appliance.
Signs this part needs replacing
- The burner fails to light, with no spark at the electrode despite a call for heat.
- Ignition is intermittent, with the appliance locking out shortly after start-up.
- A weak or irregular spark is visible at the electrode.
- The transformer shows signs of overheating, such as a burnt smell or discoloured casing.
Before you order
- Confirm the existing transformer is a ZT931 and matches the 230V rating.
- Check the ignition lead connections are the 4mm type.
- Verify the appliance uses an EOGB, Honeywell or Satronic control arrangement.
- Isolate the electrical supply before removing or fitting the transformer.
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| EOGB Honeywell - Satronic | — | — | — |
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.