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Andrews 54/440 control board (thermostat) Z139

Andrews

Andrews 54/440 control board (thermostat) Z139

Control board (T-stat) PCB for the Andrews 54/440 gas-fired storage water heater.

At a glance

  • Also known as 1822082
  • Have the replacement fitted by a Gas Safe registered engineer
Manufacturer part no.
Z139
Showing prices

£804.89

£670.74 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 Z139 is the control board, with integrated thermostat control, fitted to Andrews's 54/440 gas-fired storage water heater. It manages the appliance's sensors, ignition and heating cycles.

Signs this part needs replacing

  • Water heater fails to respond to the thermostat setting
  • Display or indicator lights behave erratically or stay blank
  • Persistent fault codes not linked to another component
  • Appliance locks out with no clear sensor fault

Before you order

  • Confirm your exact model on the appliance data plate
  • Match the part number printed on your existing control board
  • Isolate electrical power before removal
  • Have the replacement fitted by a Gas Safe registered engineer

Not sure which part?

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