ACV Thermostat A1002100

The ACV Thermostat A1002100 is a replacement thermostat designed for ACV Prestige 24 MK2 and Prestige 32 MK2 boilers. It operates with a switching temperature of 86°C and features a capillary bulb with a diameter of 6 mm, while the cap has a diameter of 900 mm. The type designation is TS-RM-DT. This thermostat supersedes the legacy part number 54764020.

Parts of this type are selected by matching the switching temperature, bulb dimensions, and type designation to the boiler's specifications. Before ordering, verify the thermostat's compatibility with the specific boiler model and ensure the capillary bulb fits the intended mounting location. The thermostat should be installed according to the manufacturer's guidelines, ensuring proper contact with the heat source.

When thermostats of this kind fail, the boiler may not regulate temperature correctly, leading to overheating or insufficient heating. Common signs include the burner not cycling on or off as expected, or the system displaying error codes related to temperature sensing. Check the thermostat's continuity and resistance at the switching temperature to diagnose a fault.