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Sime Time Programmer Box 6155420

Sime

Sime Time Programmer Box 6155420

Sime time programmer box (clock box), part number 6155420, for compatible Sime gas boiler models.

At a glance

  • Also known as 2042846
Manufacturer part no.
6155420
Showing prices

£5.89

£4.91 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 Sime Time Programmer Box is the clock box assembly used on a range of Sime gas boilers. It provides the time control function for the appliance, allowing heating and hot water periods to be set. The part is supplied under Sime part number 6155420.

Signs this part needs replacing

  • The boiler runs continuously with no response to the set programmes
  • Heating or hot water periods fail to switch on or off at the programmed times
  • The clock display is blank, distorted or does not advance
  • Time settings will not hold and reset after a power interruption
  • Physical damage or burning is visible on the programmer housing or connections

Before you order

  • Confirm the boiler model and serial number against the fits list above
  • Check the existing programmer for damage and confirm the fault lies with the clock box rather than the wiring or boiler PCB
  • Note that some Ecomfort PLUS variants are listed both with and without a time clock, so verify which version the appliance is
  • Isolate the boiler from 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.