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Ferroli Thermostat 70°C DHW Limit 39801000

Ferroli

Ferroli Thermostat 70°C DHW Limit 39801000

Ferroli 39801000 70°C DHW limit thermostat for Ferroli Combi and Optima gas boilers.

At a glance

  • Also known as 1210571
Manufacturer part no.
39801000
GC number
386-576
Showing prices

£11.02

£9.18 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 Ferroli 39801000 is a 70°C DHW limit thermostat for Ferroli gas boilers. It is used in the domestic hot water circuit to limit the stored or delivered water temperature. The part is listed for Ferroli Combi and Optima appliance families.

Signs this part needs replacing

  • Domestic hot water runs excessively hot or overheats.
  • Boiler locks out or shuts down during DHW demand.
  • No hot water or intermittent hot water from the boiler.
  • The thermostat does not reset or shows visible damage or corrosion.
  • DHW temperature fluctuates beyond the expected limit.

Before you order

  • Check the boiler model and GC number against the fitment list.
  • Confirm the existing thermostat is marked 39801000 or 70°C DHW limit.
  • Check the appliance is a Ferroli Combi or Optima gas boiler.
  • Verify the part is for the DHW circuit, not the central heating circuit.

Not sure which part?

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