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EOGB MZ770S-80 oil burner photocell

EOGB

EOGB MZ770S-80 oil burner photocell

An 80mm EOGB photocell (MZ770S type) that monitors flame presence in oil burners, signalling the control box to continue firing or to lock out.

At a glance

  • Also known as 2090058
Manufacturer part no.
S01-MZ770S-80
Showing prices

£30.24

£25.20 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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

An EOGB MZ770S-80 photocell, an 80mm flame-sensing photocell used in oil burner control systems. During start-up it checks the combustion chamber is free of stray light or flame before ignition, then continuously monitors the flame once lit, signalling the control box to lock the burner out if the flame is lost.

Signs this part needs replacing

  • Burner locks out on flame failure despite a visibly good flame
  • Burner fails to start due to a false stray-light detection
  • Photocell body shows scorching, cracking or a damaged lead
  • Engineer diagnosis of a weak or failed flame signal during fault-finding

Before you order

  • Match the part number and lead length printed on the photocell you are replacing
  • Isolate electrical power before removing the old photocell
  • Work should only be carried out by a competent oil-fired appliance engineer (OFTEC)

Not sure which part?

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