Sime
Sime Safety Thermostat 6191700
Sime 6191700 100°C safety thermostat (high limit stat) for Friendly and Murelle gas boilers.
At a glance
- Also known as 2040738
£14.57
£12.14 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 6191700 is a safety thermostat rated at 100°C, used as a high limit cut-out on Sime gas boilers. It monitors boiler temperature and interrupts the burner circuit if the set limit is exceeded, protecting the appliance from overheating. It is listed under thermostats within Sime gas boiler spares.
Signs this part needs replacing
- Boiler locks out or shuts down repeatedly once it reaches temperature.
- The appliance will not fire at all, with the safety cut-out open.
- Overheat symptoms return after resetting the boiler.
- The thermostat shows signs of heat damage, scorching or a loose or corroded connection.
- Continuity testing shows the thermostat is not switching as expected.
Before you order
- Confirm your boiler model against the fit list above, as several Murelle variants use different configurations.
- Check the existing thermostat's temperature rating and part number to confirm it matches 6191700.
- Inspect the wiring and mounting arrangement on the appliance before fitting, as access varies between models.
- Verify the fault is with the thermostat itself rather than a circulation, pump or sensor issue causing the overheat.
Compliance
| Alternative numbers | 2040738 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME FRIENDLY P.PILOT - 8088905 | 47-719-03 | 47-719-03 | — | — |
| SIME MURELLE 20 CE GPL - 8069413 | — | — | — | |
| SIME MURELLE 20 CE IONO GPL - 8069415 | — | — | — | |
| SIME MURELLE 20 CE IONO MET - 8069414 | — | — | — | |
| SIME MURELLE 20 CE MET - 8069412 | 47-719-18 | 47-719-18 | — | — |
| SIME MURELLE 20 TX CE IONO MET - 8076909 | — | — | — | |
| SIME MURELLE 25 CE IONO MET - 8069438 | — | — | — | |
| SIME MURELLE CE | — | — | — | |
| SIME SIME FRIENDLY PP | — | — | — | |
| SIME SIME MURELLE CE | — | — | — |
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.
SIME appliance manual — FRIENDLY P.PILOT - 8088905 (GC 47-719-03)
manualmanualSIME appliance manual — MURELLE 20 CE GPL - 8069413, MURELLE 20 CE IONO GPL - 8069415, MURELLE 20 CE IONO MET - 8069414, MURELLE 20 CE MET - 8069412 (GC 47-719-18), MURELLE 20 TX CE IONO MET - 8076909, MURELLE CE
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