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Andrews Water Inlet Thermistor 300 G137

Andrews

Andrews Water Inlet Thermistor 300 G137

Hot water thermistor 300 BWC for Andrews Fastflo and Fastflo PLUS water heaters, part number G137.

At a glance

  • Also known as 1821778
Manufacturer part no.
G137
Showing prices

£41.11

£34.26 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 G137 is a hot water thermistor (300 BWC) for Andrews water heaters. It senses hot water temperature and feeds that reading to the appliance's control system. It is listed for Fastflo and Fastflo PLUS models.

Signs this part needs replacing

  • Hot water temperature reads incorrectly or drifts from the set point
  • Appliance cycles, locks out or displays a temperature-related fault
  • Hot water runs cold or overheats
  • Unstable or erratic temperature readings at the control

Before you order

  • Check your appliance model against the Fits list above
  • Confirm the part number G137 matches the component being replaced
  • Consult the manufacturer's parts list for your model if you are unsure

Not sure which part?

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