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Ariston Thermostat (Manual Reset) 65112045

Ariston

Ariston Thermostat (Manual Reset) 65112045

Manual reset thermostat for Ariston Kairos MACC cylinders, part number 65112045.

At a glance

  • Also known as 1593266
Manufacturer part no.
65112045
Showing prices

£11.80

£9.83 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Ariston 65112045 is a manual reset thermostat used on Ariston Kairos MACC unvented cylinders. It monitors cylinder temperature and cuts the heat source if the set point is exceeded, requiring a manual reset before the appliance will run again. It forms part of the cylinder's thermal safety control rather than the primary temperature regulation.

Signs this part needs replacing

  • The cylinder stops heating and the reset button will not latch or hold.
  • The thermostat trips repeatedly, requiring reset after every heating cycle.
  • No hot water despite the cylinder controls calling for heat.
  • The reset trips at temperatures well below the normal cylinder set point.
  • Visible damage, scorching or a loose or corroded connection at the thermostat terminals.

Before you order

  • Confirm the cylinder model against the fit list above, including any CODE number shown on the data plate.
  • Check the existing thermostat's part number and reset type before removing it.
  • Isolate the electrical supply to the cylinder and verify the fault is with the thermostat rather than the cylinder controls or heating source.
  • Confirm whether a manual reset device is the correct type for your installation.

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.