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Overheat Thermostat

Part number (MPN)
BI1172105
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Source
retailer parts list
checked 2026-11-06
Fitting notes

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

Compatible appliances

Always check the model and serial number on the data plate before ordering.

Frequently asked questions

Which appliances does BI1172105 fit?

The sources we checked list BI1172105 (Overheat Thermostat, Biasi) for: ACTIV A PLUS 16S SYSTEM NG, ACTIV A PLUS 25S SYSTEM NG, Biasi Activ A 12OV, Biasi Activ A 15OV, Biasi Activ A 18S, Biasi Activ A 20OV, Biasi Activ A 25C, Biasi Activ A 25OV, Biasi Activ A 25S, Biasi Activ A 30C, Biasi Activ A 30S, Biasi Activ A 35C, ADVANCE 150V SYSTEM NG, ADVANCE 180V SYSTEM NG, ADVANCE 240V SYSTEM NG, ADVANCE 25C COMBI NG, ADVANCE 25S SYSTEM NG, ADVANCE 30C COMBI NG, ADVANCE PLUS 16S ERP SYSTEM NG, ADVANCE PLUS 16S SYSTEM NG, ADVANCE PLUS 25S ERP SYSTEM NG, ADVANCE PLUS 25S SYSTEM NG, ADVANCE PLUS 30S ERP SYSTEM NG, ADVANCE PLUS 30S SYSTEM NG, GARD HE+ M110B.24SM/E COMBI NG, GARD HE+ M110B.32SM/E COMBI NG, GARDA HE M96.24SM/B2 COMBI NG, GARDA HE M96.24SM/D2 COMBI NG, GARDA HE M96.28SM/B2 COMBI NG, GARDA HE M96.28SM/D2 COMBI NG, GARDA HE M96A.24SM/B COMBI NG, GARDA HE M96A.28SM/B COMBI NG, Biasi Garda M90F.24S, Biasi Garda M90F.24Sr, Biasi Garda M90F.28S, Biasi Garda M90F.28Sr, Biasi Garda M90F.32S, Biasi Garda HE M96.24Sm/B, Biasi Garda HE M96.24Sm/D, Biasi Garda HE M96.28Sm/B, Biasi Garda HE M96.28Sm/D, Biasi Garda HE Plus M110.24Sm/E, Biasi Garda HE Plus M110.28Se/E, INOVIA 16S SYSTEM NG, INOVIA 25S ERP SYSTEM NG, INOVIA 25S SYSTEM NG, Biasi Parva HE M96.24SM/P, Biasi Parva HE M96.28SM/P, Biasi Parva HE M96.28SR/P, Biasi Parva HE M96.32SM/P, Biasi Parva HE M96.32SR/P, Biasi Parva Se M90.24S, Biasi Parva Se M90.24Sr, Biasi Parva Se M90.28S, Biasi Parva Se M90.28Sr, RIVA ADV M110B.24SR/C SYS NG, RIVA C HE M96.24SM/C COMBI NG, RIVA C HE M96.28SM/C COMBI NG, RIVA M296.24 SR/C SYSTEM NG, RIVA M296.28 SR/C SYSTEM NG, RIVA PLUS HE 24S ERP SYSTEM NG, RIVA PLUS HE 28S ERP SYSTEM NG, Biasi Riva Advance HE Iso M110B.24SM, Biasi Riva Advance HE Iso M110B2SM, Biasi Riva Advance M110.24Sm/C, Biasi Riva Advance M110.32Sm/C, Biasi Riva Compact HE M96.24Sm/C2, Biasi Riva Compact HE M96.24Sr/C2, Biasi Riva Compact HE M96.28Sm/C2, Biasi Riva Compact HE M96.28Sr/C2, Biasi Riva Compact HE M96.32Sm/C2, Biasi Riva Compact HE Mk2 M96A.24Sm/, Biasi Riva Compact HE Mk2 M96A.24Sr/, Biasi Riva Compact HE Mk2 M96A.28Sm/, Biasi Riva Compact HE Mk2 M96A.28Sr/, Biasi Riva Compact HE Mk2 M96A.32Sm/, Biasi Riva Compact M90E.24S, Biasi Riva Compact M90E.28S, Biasi Riva Compact M90E.32S, Biasi Riva Compact HE M96.24Sm/C, Biasi Riva Compact HE M96.28Sm/C, Biasi Riva Compact HE M96.28Sr/C, Biasi Riva Plus M90D.24S, Biasi Riva Plus M90D.24Sr, Biasi Riva Plus M90D.28S, Biasi Riva Plus M90D.28Sr. Always check the model and serial number on the data plate before ordering.

Does BI1172105 have equivalent or superseded part numbers?

The sources we checked list no equivalents for BI1172105. Ask a Biasi stockist to confirm.

What should I check before fitting BI1172105?

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

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Some lists are dated and the part may have been superseded. Information only, compatibility not guaranteed.