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Heatline Limit Thermostat 98/70C Bott/Left D003200397

Heatline

Heatline Limit Thermostat 98/70C Bott/Left D003200397

Heatline limit thermostat rated 98/70°C, fitted in the bottom/left position on a range of Heatline gas boilers.

At a glance

  • Part type: limit thermostat
  • Also known as 2170700
Manufacturer part no.
D003200397
Showing prices

£27.72

£23.10 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 Heatline limit thermostat 98/70°C (bottom/left) is a safety cut-out device used across a wide range of Heatline gas boilers. It monitors boiler temperature and interrupts the burner circuit if the set limit is exceeded, protecting the appliance from overheating. This version is supplied in the bottom/left mounting position.

Signs this part needs replacing

  • Boiler locks out or goes to fault shortly after the burner fires
  • Repeated overheating trips with the appliance cutting out during demand
  • No continuity across the thermostat terminals when tested
  • Boiler cycling on and off more frequently than normal
  • Heating or hot water demand not being maintained after a lockout reset

Before you order

  • Confirm your boiler model against the fitment list above
  • Check the existing thermostat is the bottom/left mounted type
  • Verify the temperature rating marked on the failed part matches 98/70°C
  • Inspect the wiring and connections before replacing the thermostat

Not sure which part?

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