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Andrews Relay Control Z309

Andrews

Andrews Relay Control Z309

Relay control for Andrews water heaters, listed for Ecoflo Ec380/1900 and Lec380/1900 A-B series models.

At a glance

  • Part type: Relay control
  • Also known as 1824110
Manufacturer part no.
Z309
Showing prices

£143.21

£119.34 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 Andrews Z309 is a relay control for Andrews water heaters. It forms part of the appliance's printed circuit board assembly and handles relay switching within the control circuit. It is listed for use across the Andrews hot water spares range, including Ecoflo Ec380/1900 and Lec380/1900 A-B series models.

Signs this part needs replacing

  • The appliance fails to fire or ignite when there is a call for heat.
  • Relays click audibly but the burner does not start.
  • Intermittent operation, with the appliance cutting out or cycling erratically.
  • Hot water or heating output drops or stops with no obvious cause elsewhere.
  • Repeated lockouts or fault codes traced to the control board.

Before you order

  • Confirm your appliance model against the fit list above.
  • Check the existing control board for the Z309 part number marking.
  • Isolate the power supply before removing or inspecting the control board.
  • If unsure, compare the board layout and connections with the part being replaced.

Not sure which part?

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