Worcester Bosch
Worcester Bosch High Limit Thermostat LM7-P5075 87161423100
Worcester Bosch LM7-P5075 high limit thermostat, part 87161423100, for Heatslave oil combi models; cuts the burner on overheat.
At a glance
- Part type: High limit thermostat (thermostats, thermistors and sensors)
- Appliance family: Worcester Heatslave oil combi
- Also known as 1018051
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£45.85
£38.21 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 Worcester Bosch LM7-P5075 is a high limit thermostat used in Worcester Heatslave oil combination appliances. It monitors temperature at the heat exchanger and interrupts the burner circuit when the set limit is exceeded, protecting the appliance from overheating. The part is supplied under Worcester Bosch part number 87161423100 and is also listed under the alternative number 1018051.
Signs this part needs replacing
- The appliance locks out repeatedly and requires a manual reset before it will run again
- The burner cuts out before the appliance reaches its normal operating temperature
- Domestic hot water or heating output is intermittent, with the appliance shutting down mid-cycle
- The high limit trips again immediately after resetting, even with the system cold
- Temperature at the flow or store is noticeably higher or lower than the set point
Before you order
- Check the appliance model and serial plate against the compatibility list to confirm the thermostat is correct for your Heatslave variant
- Confirm the part number on the existing thermostat matches 87161423100 or the alternative number 1018051 before ordering
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Thermostats, Thermistors & Sensors |
|---|---|
| Appliance family | Worcester Heatslave oil combi |
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 87161423100 |
|---|---|
| Barcode / EAN | 4010009950813 |
| Commodity code | 9032 10 00 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 1018051 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER HEATSLAVE 12/14-OSO-GB OIL COMBI (JUL 1996) | — | — | — | |
| WORCESTER HEATSLAVE 12/14-OSO-GB OIL COMBI (OCT 2001) | — | — | — | |
| WORCESTER HEATSLAVE 12/14-RSO-GB OIL COMBI (JUN 1997) | — | — | — | |
| WORCESTER HEATSLAVE 12/14-RSO-GB OIL COMBI (OCT 2001) | — | — | — | |
| WORCESTER HEATSLAVE 15/19-OSO-GB OIL COMBI (JUL 1996) | — | — | — | |
| WORCESTER HEATSLAVE 15/19-RSO-GB OIL COMBI (JUN 1997) | — | — | — | |
| WORCESTER HEATSLAVE 20/25-OSO-GB OIL COMBI (JUN 1996) | — | — | — | |
| WORCESTER HEATSLAVE 20/25-OSO-GB OIL COMBI (SEPT 2001) | — | — | — | |
| WORCESTER HEATSLAVE 20/25-RSO-GB OIL COMBI (JUN 1997) | — | — | — | |
| WORCESTER HEATSLAVE 20/25-RSO-GB OIL COMBI (SEPT 2001) | — | — | — |
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