Sime
Sime Safety Thermostat 6146004
Sime safety thermostat rated at 120°C, part number 6146004, for Murelle HE R series appliances.
At a glance
- Also known as 8921915
£112.10
£93.42 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 Sime 6146004 is a safety thermostat rated at 120°C, used as an overheat protection device on Sime Murelle HE R series appliances. It monitors boiler temperature and interrupts the burner circuit if the set limit is exceeded. It is a manufacturer part identified by Sime part number 6146004.
Signs this part needs replacing
- Boiler locks out or shuts down repeatedly with an overheat fault
- Appliance fails to fire after the safety thermostat has tripped
- Burner cuts out before the boiler reaches its normal operating temperature
- No heating or hot water following a lockout that will not clear on reset
- Thermostat shows signs of heat damage, corrosion or a loose or broken connection
Before you order
- Confirm the appliance model and serial number against the fitment list above
- Check the existing thermostat's temperature rating and part number before removal
- Inspect the wiring and mounting point for damage that may also need attention
- Verify the fault is not caused by a circulation, pump or sensor issue before replacing the thermostat
Compliance
| Alternative numbers | 8921915 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME MURELLE HE 110 R - 8104960 | 41-283-28 | 41-283-28 | — | — |
| SIME MURELLE HE 110 R M - 8104990 | — | — | — | |
| SIME MURELLE HE 50 R M MET - 8111201 | — | — | — |
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.
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