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Thermostat - Classico/Contract/Primo

Part number (MPN)
691216
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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 691216 fit?

The sources we checked list 691216 (Thermostat - Classico/Contract/Primo, Ariston) for: CLASSICO STD 125 V2 ELEC, CLASSICO STD 150 V2 ELEC, CLASSICO STD 210 V2 ELEC, CLASSICO STD 300 ELEC, CLASSICO STD 300 V2 ELEC, Ariston Classico Std 125, Ariston Classico Std 150, Ariston Classico Std 210, Ariston Classico Std 300, CLASSICO STI 125 V2 ELEC, CLASSICO STI 150 V2 ELEC, CLASSICO STI 210 V2 ELEC, CLASSICO STI 300 ELEC, CLASSICO STI 300 V2 ELEC, Ariston Classico Sti 125, Ariston Classico Sti 150, Ariston Classico Sti 210, Ariston Classico Sti 300, CONTRACT 125 STI PROTECH ELEC, CONTRACT 150 STI PROTECH ELEC, CONTRACT 210 STI PROTECH ELEC, CONTRACT 300 STI PROTECH ELEC, PRIMO ITD 100 NEW ELEC, PRIMO ITD 175 NEW ELEC, PRIMO ITD 250 NEW ELEC, PRIMO ITD 300 ELEC, PRIMO ITI 100 NEW ELEC, PRIMO ITI 125 ELEC, PRIMO ITI 150 ELEC, PRIMO ITI 175 NEW ELEC, PRIMO ITI 210 ELEC, PRIMO ITI 250 NEW ELEC, PRIMO ITI 300 ELEC, PRIMO ITSI 300 ELEC, PRIMO TWN ITSI 210 ELEC, PRIMO TWN ITSI 250 ELEC, PRIMO TWN ITSI 300 ELEC, Ariston Primo ITD - ITI 125, Ariston Primo ITD - ITI 150, Ariston Primo ITD - ITI 210, Ariston Primo ITD - ITI 300, CONTRACT STD 100 from serial n, CONTRACT STD 100 PROTECH, CONTRACT STD 125 from serial n, CONTRACT STD 125 PROTECH, CONTRACT STD 150 from serial n, CONTRACT STD 150 PROTECH, CONTRACT STD 210 from serial n, CONTRACT STD 210 PROTECH, CONTRACT STD 300 PROTECH from, CONTRACT STD 300 UK from seria, CONTRACT STI 125 from serial n, CONTRACT STI 125 PROTECH, CONTRACT STI 150 from serial n, CONTRACT STI 150 PROTECH, CONTRACT STI 210 from serial n, CONTRACT STI 210 PROTECH, CONTRACT STI 300 from serial n, CONTRACT STI 300 PROTECH from. Always check the model and serial number on the data plate before ordering.

Does 691216 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 691216. Ask a Ariston stockist to confirm.

What should I check before fitting 691216?

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.