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Reznor Limit Control LC1 MK2 03 24959 04

Reznor

Reznor Limit Control LC1 MK2 03 24959 04

Reznor limit control (LC1) MK2, part number 03 24959 04, for LCSA warm air units and UDSA room sealed heaters.

At a glance

  • Also known as 2530504
Manufacturer part no.
03 24959 04
Showing prices

£63.86

£53.22 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

Reznor limit control, supplied as the LC1 MK2 version under part number 03 24959 04. It is the high-limit safety control used on Reznor LCSA warm air unit heaters and UDSA room sealed heaters. The control monitors appliance temperature and interrupts the burner circuit when the limit threshold is reached.

Signs this part needs replacing

  • The appliance locks out or shuts down before reaching its set temperature
  • The burner short-cycles or fails to stay lit during a call for heat
  • The overheat cut-out trips repeatedly during normal running
  • The unit requires frequent manual resetting

Before you order

  • Confirm the appliance model and variant against the fit list
  • Check the existing control is marked LC1 MK2
  • Verify the part number on the old component matches 03 24959 04
  • Isolate the electrical supply and gas before removing the control

Not sure which part?

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