Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Andrews Lower Thermostat Z137

Andrews

Andrews Lower Thermostat Z137

Lower thermostat sensor Z137 for Andrews HI FLO water heaters, including 32/143, 65/173 and 81/264 models.

At a glance

  • Part type: Lower thermostat
  • Also known as 1822078
Manufacturer part no.
Z137
Showing prices

£121.99

£101.66 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 Z137 is a lower thermostat for Andrews water heaters. It forms part of the appliance's temperature control system, helping to regulate water temperature. It is used across the HI FLO range of Andrews water heaters.

Signs this part needs replacing

  • Water temperature is inconsistent or does not match the set point
  • Water is overheating or not heating sufficiently
  • The appliance cycles on and off more frequently than normal
  • Temperature readings are erratic or the heater fails to maintain temperature

Before you order

  • Confirm your appliance model matches one of the HI FLO models listed
  • Check the existing thermostat's part number against Z137
  • Isolate the power supply before inspecting or replacing the part
  • Consult the manufacturer's parts list if unsure of compatibility

Not sure which part?

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