Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Andrews Wiring Harness Temperature Sensor Z122

Andrews

Andrews Wiring Harness Temperature Sensor Z122

Andrews Z122 temperature sensor wiring harness for Classicflo and Ecoflo water heaters and boilers.

At a glance

  • Also known as 1823878
Manufacturer part no.
Z122
Showing prices

£104.76

£87.30 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 Z122 is a wiring harness for a temperature sensor, listed by the manufacturer as a thermostat sensor. It is used on Andrews water heaters and boilers to connect the temperature sensing element to the appliance control. The control uses the sensor signal to monitor water temperature and regulate operation.

Signs this part needs replacing

  • Temperature readings that are inaccurate or erratic
  • Appliance cycling, lockout or failing to reach the set temperature
  • Intermittent faults that clear when the harness is moved
  • Visible damage to the wiring, insulation or connector
  • Sensor-related fault codes shown on the appliance control

Before you order

  • Confirm your appliance model against the fitment list above
  • Check the existing sensor connector and wiring route match the Z122 harness
  • Isolate the power supply before removing or fitting the part
  • Have the appliance wiring diagram to hand for reconnection

Not sure which part?

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