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Hamworthy Timer Delay Relay 533924001

Hamworthy

Hamworthy Timer Delay Relay 533924001

230 V 8-pin timer delay relay with a 2-pole, 250 V AC 5 A contact, used in Hamworthy boilers to control timed sequencing.

At a glance

  • Also known as 2062148
Manufacturer part no.
533924001
Showing prices

£269.03

£224.19 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 Hamworthy 533924001 is a 230 V timer delay relay with an 8-pin connection and a 2-pole, 250 V AC 5 A contact. It is fitted to Hamworthy gas boilers to introduce timed delays within the appliance's sequence of operation. The part is also referenced as TDR1.

Signs this part needs replacing

  • Boiler fails to start or sequence correctly, with the expected delays not occurring
  • Fan, pump or ignition sequence runs at the wrong time or not at all
  • Intermittent lockouts that clear after a reset
  • Audible chattering or clicking from the relay
  • Visible burning, pitting or discolouration on the relay or its contacts

Before you order

  • Confirm the relay is 230 V and has 8 pins
  • Check the contact rating matches the original (2-pole, 250 V AC, 5 A)
  • Verify your appliance model against the manufacturer's parts list
  • Inspect the relay base and wiring for heat damage before fitting

Not sure which part?

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