Biasi Flue Temperature Probe NTC and Safety Thermal Fuse BI1416105

The Biasi BI1416105 is a flue temperature probe combining an NTC thermistor with a safety thermal fuse. It monitors flue gas temperature on Biasi Garda HE PLUS and RIVA Advance HE condensing boilers, feeding temperature data back to the control board while the thermal fuse provides a one-shot safety cut-out. It is a serviceable flue component, not a combustion-setting part.

• Boiler locks out or shuts down with a flue or temperature-related fault code
• Flue temperature readings at the control board are implausible, erratic or fixed
• Resistance across the NTC element reads open circuit or short circuit when tested
• The safety thermal fuse has operated and shows continuity failure
• Repeated nuisance shutdowns once the appliance reaches operating temperature

• Confirm your appliance model against the fitment list above before ordering
• Check the fault code and, where accessible, test the probe's NTC resistance to confirm the diagnosis
• Compare the connector type and lead arrangement on the existing probe with the part being ordered
• Isolate the electrical supply and allow the flue path to cool before removal or inspection