Glow-worm
Glow-worm Overheat Thermostat & Heatsink LM7-P8510
Overheat thermostat and heatsink for Glow-worm boilers, Ranco LM7-P8510, Glow-worm part 800272.
At a glance
- Also known as 5037985027499, GLOWWORM800272, 1332797
£0.01
£0.01 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 Ranco LM7-P8510 is an overheat thermostat supplied with a heatsink, used as a safety cut-out on Glow-worm gas boilers. It monitors appliance temperature and interrupts the burner circuit if the boiler overheats. This is the Glow-worm part 800272.
Signs this part needs replacing
- Boiler locks out and requires a manual reset, often shortly after firing
- Appliance shuts down before reaching the set flow temperature
- Repeated overheat trips with no other fault found
- Intermittent heating or hot water because the safety circuit is opening
Before you order
- Confirm the appliance model and, where listed, the serial number against the fitment list
- Compare the part number on the existing thermostat with LM7-P8510 and 800272
- Check the thermostat and heatsink arrangement on the boiler matches the item shown
Compliance
| GC number | 313-606 |
|---|---|
| Barcode / EAN | 5037985027499 |
| Alternative numbers | 5037985027499, GLOWWORM800272, GLOWWORM800272, 1332797 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM ECOMOMY 80FF - SERIAL NUMBER 3037 | — | — | — | |
| GLOWWORM ECONOMY 24FF | 41-313-90 | 41-313-90 | — | — |
| GLOWWORM ECONOMY 30F | 41-319-05 | 41-319-05 | — | — |
| GLOWWORM ECONOMY 40FF - SERIAL NUMBER 14451 | 41-319-06 | 41-319-06 | — | — |
| GLOWWORM ECONOMY 50FF - SERIAL NUMBER 14255 | 41-319-07 | 41-319-07 | — | — |
| GLOWWORM ECONOMY 60FF - SERIAL NUMBER 3989 | 41-319-04 | 41-319-04 | — | — |
| GLOWWORM ECONOMY PLUS 24F | 41-319-21 | 41-319-21 | — | — |
| GLOWWORM ECONOMY PLUS 30F | 41-319-29 | 41-319-29 | — | — |
| GLOWWORM ECONOMY PLUS 40F | 41-319-30 | 41-319-30 | — | — |
| GLOWWORM ECONOMY PLUS 50F | 41-319-31 | 41-319-31 | — | — |
Showing 10 of 27 compatible appliances.
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.
GLOWWORM appliance manual — ECONOMY 30F (GC 41-319-05)
manualmanualGLOWWORM appliance manual — ECONOMY PLUS 24F (GC 41-319-21)
manualmanualGLOWWORM appliance manual — ECONOMY PLUS 30F (GC 41-319-29), ECONOMY PLUS 40F (GC 41-319-30), ECONOMY PLUS 50F (GC 41-319-31)
manualmanualGLOWWORM appliance manual — ECONOMY PLUS 60F (GC 41-319-63)
manualmanualGLOWWORM appliance manual — ECONOMY PLUS 80F (GC 41-319-64)
manualmanualGLOWWORM appliance manual — MICRON 100FF (GC 41-047-22)
manualmanualGLOWWORM appliance manual — MICRON 120FF (GC 41-047-23)
manualmanualGLOWWORM appliance manual — ULTIMATE 100FF (GC 41-319-61)
manualmanualGLOWWORM appliance manual — ULTIMATE 120FF (GC 41-319-75)
manualmanualGLOWWORM appliance manual — ULTIMATE 30FF (GC 41-319-56)
manualmanualGLOWWORM appliance manual — ULTIMATE 40FF (GC 41-319-57)
manualmanualGLOWWORM appliance manual — ULTIMATE 50FF (GC 41-319-58)
manualmanualGLOWWORM appliance manual — ULTIMATE 60FF (GC 41-319-59)
manualmanualGLOWWORM appliance manual — ULTIMATE 70FF (GC 41-319-86)
manualmanualGLOWWORM appliance manual — ULTIMATE 80FF (GC 41-319-60)
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