Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Hanicks
Basket
Sime Thermostat Extension 6112320

Sime

Sime Thermostat Extension 6112320

Thermostat extension for Sime Ecomfort gas boilers, part number 6112320.

At a glance

  • Appliance family: Sime Ecomfort
  • Also known as 2042120
Manufacturer part no.
6112320
Showing prices

£10.78

£8.98 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 Sime 6112320 is a thermostat extension for Sime Ecomfort gas boilers. It is listed in the thermostats section of the Sime gas boiler spares range and is fitted across the Ecomfort and Ecomfort PLUS appliance families.

Signs this part needs replacing

  • The boiler does not respond when the thermostat calls for heat.
  • Heating runs intermittently or cuts out without any change being made at the thermostat.
  • The thermostat signal is lost once the boiler has been running for a period.
  • Visible damage, corrosion or a loose connection at the extension.

Before you order

  • Check the appliance data badge and confirm the model matches one of the Ecomfort variants listed above.
  • Confirm the part number on the existing component is 6112320.
  • Check whether the appliance is a time clock or non-time clock variant, as both appear in the fitment list.
  • Isolate the electrical supply before removing or fitting any control component.

Not sure which part?

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