
EOGB
EOGB MMI810.1 Mod 35 Control Box S01-MMI810.1-35
EOGB MMI810.1 mod 35 burner control box, supplied as a replacement for the TFI852B unit.
£660.70
£550.58 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 EOGB MMI810.1 mod 35 is a burner control box used on EOGB, Honeywell and Satronic boiler applications. It is supplied as the replacement for the TFI852B control unit. The control box manages the burner sequence, providing the ignition, flame supervision and lockout functions required for safe boiler operation.
Signs this part needs replacing
- The burner fails to run through its start sequence and locks out
- The boiler repeatedly attempts ignition and then shuts down
- The control box shows a permanent lockout that cannot be reset
- Ignition sparks are present but the burner does not fire or prove flame
- Intermittent burner operation with unexplained shutdowns during a demand for heat
Before you order
- Confirm the existing control box carries the TFI852B reference before ordering the MMI810.1 mod 35
- Check the appliance manufacturer and model against the fitment line above
- Verify the burner control box is accessible and the appliance can be safely isolated before work begins
- Confirm the electrical supply and wiring connections match the existing installation
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| EOGB Honeywell - Satronic | — | — | — |
Documents & drawings
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No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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