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Ideal 175668 diverter valve cartridge

Ideal

Ideal 175668 diverter valve cartridge

At a glance

  • Also known as IDEAL175668C
  • Isolate power and water; fitting is a job for a Gas Safe registered engineer
Manufacturer part no.
175668C
Showing prices

£42.00

£35.00 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next working day
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 175668 is a diverter valve cartridge, sometimes called a three-way or changeover valve. It is the part inside a combi boiler's diverter valve that directs hot water either to the radiators or to the domestic hot water side, depending on demand.

Signs this part needs replacing

  • Heating stays on, or radiators go hot, when only hot water is being drawn
  • Poor or no hot water at taps even though the boiler fires
  • Hot water dribbles from an unused outlet
  • Boiler is slow to switch between heating and hot water modes

Before you order

  • Match the part number on your existing cartridge to 175668 before ordering
  • If the fault persists after fitting a new cartridge, the diverter valve actuator motor (174813) may also need replacing
  • Isolate power and water; fitting is a job for 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.