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Johnson & Starley Water Temperature Sensor 1000-0522595

Johnson & Starley

Johnson & Starley Water Temperature Sensor 1000-0522595

Water temperature sensor for Johnson & Starley gas boilers, part number 1000-0522595.

At a glance

  • Also known as 1690320
Manufacturer part no.
1000-0522595
GC number
H23-613
Showing prices

£20.26

£16.88 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

Water temperature sensor for Johnson & Starley gas boilers. It monitors water temperature within the appliance and provides feedback to the control system. Part number 1000-0522595.

Signs this part needs replacing

  • Boiler fails to maintain consistent water temperature
  • Frequent lockouts or error codes related to temperature
  • Domestic hot water runs hot and cold
  • Heating system cycles on and off rapidly
  • No response from temperature controls

Before you order

  • Check your boiler model against the fit list
  • Confirm the part number matches your existing sensor
  • Inspect the sensor wiring and connections for damage
  • Ensure the system is isolated and depressurised before replacement

Not sure which part?

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