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EOGB Control Box MMI810.1 Mod 40-34

EOGB

EOGB Control Box MMI810.1 Mod 40-34

EOGB MMI810.1 Mod 40-34 control box for Honeywell and Satronic burner control applications in boilers.

Manufacturer part no.
S01-MMI810-1-40-34
Showing prices

£682.86

£569.05 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 MMI810.1 Mod 40-34 is a control box manufactured by EOGB and specified for Honeywell and Satronic burner control applications in boilers. It sits within the appliance control circuit and provides the burner control box function for the boiler. The unit is identified by its MMI810.1 Mod 40-34 part reference.

Signs this part needs replacing

  • The burner fails to run through its start sequence and the appliance locks out.
  • Repeated lockouts that reset only temporarily before the fault returns.
  • No response from the burner when a demand is applied to the boiler.
  • The control box shows visible damage, moisture ingress or burning at the terminals.

Before you order

  • Check the existing control box marking matches MMI810.1 Mod 40-34.
  • Confirm the burner control family fitted to the appliance is EOGB, Honeywell or Satronic.
  • Verify the boiler model and burner details before ordering, as control boxes are not interchangeable across all variants.
  • Fitting should be carried out by a competent heating engineer, with the appliance isolated and the burner sequence checked after replacement.

Not sure which part?

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