Alpha Circulation Pump Wilo Stratos 40/1-8 7.2000024

The Wilo Stratos 40/1-8 is a circulation pump supplied by Alpha under part number 7.2000024. It is the component that moves water around the heating circuit of the appliance, maintaining flow through the heat exchanger and the system pipework. It is used on Alpha Commercial ARES appliances and is listed against the ARES 150 TEC range.

• The appliance runs but the heating circuit stays cold, or flow and return temperatures do not rise as expected.
• The pump is noisy in operation, with rumbling, grinding or whining that was not present before.
• The pump body or its connections show signs of weeping or leakage.
• The pump does not start when there is a call for heat, or runs intermittently.
• The appliance locks out or reports a circulation-related fault during a heating demand.

• Confirm the appliance model and serial number against the compatibility list, as the ARES 150 TEC and ARES 150 TEC (LPG) are the listed applications for this pump.
• Check the label on the existing pump to confirm it is a Wilo Stratos 40/1-8 before ordering.
• Note the alternative part number 1261000 when cross-referencing against existing documentation.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.