Popular OIL
Popular Oil Satronic MZ770S Photocell 80mm
Satronic MZ770S photocell with an 80mm lead, used for flame detection on oil-fired boiler burners.
£35.04
£29.20 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 Satronic MZ770S is a flame detection photocell with an 80mm lead, supplied under the Popular Oil spares range. It monitors the burner flame on oil-fired boiler appliances and signals the control box to shut down the burner if no flame is proven. It is a service part for oil burner assemblies and air damper arrangements.
Signs this part needs replacing
- Burner fires then locks out after the safety time, with no flame proven
- Repeated or intermittent lockouts during a call for heat
- Photocell window blackened, sooted or contaminated so light cannot reach the sensor
- Resistance readings that fall outside the values given for the burner control
- Burner runs only when the photocell is shielded from the flame
Before you order
- Confirm the part number on the existing photocell matches MZ770S
- Check the lead length required on your burner against the 80mm lead
- Verify your appliance model against the manufacturer's parts list before ordering
- Inspect the photocell holder and wiring for damage that could mimic a failed cell
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POPULAR OIL SPARES AIR DAMPERS | — | — | — | |
| POPULAR OIL SPARES OIL SPARE PARTS | — | — | — |
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.
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