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Andrews PCB (Dual Sensor) Z126

Andrews

Andrews PCB (Dual Sensor) Z126

Control board with dual sensor for Andrews Classicflo RFF water heaters, part number Z126.

At a glance

  • Also known as 1822074
Manufacturer part no.
Z126
Showing prices

£411.06

£342.55 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 PCB (Dual Sensor) is a control board for Andrews water heaters, supplied under part number Z126. It manages the appliance's operating sequence and takes its readings from two sensors on the unit. It is listed for the Andrews Classicflo RFF range.

Signs this part needs replacing

  • The appliance fails to start or run through its sequence when there is a demand for hot water.
  • The control locks out and requires repeated manual resets.
  • Delivered water temperature becomes erratic or does not match the setting.
  • Sensor readings at the board are absent, fixed or clearly inconsistent with the actual water temperature.
  • The board shows visible damage, moisture ingress or burnt components.

Before you order

  • Confirm the appliance model and version against the two Classicflo RFF fits listed above.
  • Check the part number on the existing board or in the appliance documentation matches Z126.
  • Inspect the wiring, connectors and sensor leads for damage before fitting a new board.
  • Isolate the electrical supply and the gas supply as applicable before starting work.

Not sure which part?

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