Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Ideal Flow Turbine Cartridge HE38 176139

Ideal

Ideal Flow Turbine Cartridge HE38 176139

Ideal 176139 flow turbine cartridge for Logic Code Combi 36 and ES38 boilers, sensing hot water draw-off in the DHW circuit.

At a glance

  • Part type: Flowswitch cartridge
  • Also known as 1781802
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
176139
Showing prices

£77.53

£64.61 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 Ideal 176139 is a flow turbine cartridge used in Ideal Logic Code Combi appliances. It sits in the domestic hot water circuit and spins as water is drawn through it, generating the signal the boiler uses to recognise a hot water demand and fire the burner accordingly. Supplied under the Ideal Spares brand, it is the cartridge element of the flowswitch assembly rather than the complete housing.

Signs this part needs replacing

  • No hot water production despite the boiler running for heating
  • Boiler fails to fire when a hot tap is opened
  • Intermittent or fluctuating hot water, with the burner dropping out mid-draw
  • Fault code relating to hot water demand or flow detection logged on the display
  • Visible wear, debris build-up or a turbine that no longer spins freely when the cartridge is removed

Before you order

  • Check the GC number on the appliance data badge against the compatibility list, as the same model name can appear in more than one build variant
  • Confirm the alternative number 1781802 matches the part currently fitted before ordering
  • Inspect the cartridge housing and seals while the assembly is apart, as debris in the DHW circuit is a common cause of repeat failure
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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