EOGB
EOGB Control Box MMI811.1 Mod 35
Control box for EOGB, Honeywell and Satronic boiler applications, part number MMI811.1 Mod 35.
£707.92
£589.93 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 MMI811.1 Mod 35 Control box is a boiler control box manufactured by EOGB for use across the EOGB, Honeywell and Satronic appliance ranges. It provides the control and sequencing function within the appliance, handling the firing sequence and associated safety interlocks.
Signs this part needs replacing
- Boiler fails to start or complete its ignition sequence
- Repeated lockouts that require a manual reset
- No response to heat demand from the thermostat or programmer
- Intermittent or erratic boiler operation
Before you order
- Confirm the part number on the existing control box matches MMI811.1 Mod 35
- Check the appliance make and model against the EOGB, Honeywell and Satronic ranges
- Verify that the Mod 35 variant is the one specified for the appliance
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.
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