Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Ideal Flow Switch 17 Sec 171157

Ideal

Ideal Flow Switch 17 Sec 171157

Ideal flow switch, 17 sec, part 171157 (88024738), for Ideal Commercial Viscount GTE and other Ideal Commercial appliances.

At a glance

  • Part type: Flow switch
  • Appliance family: Ideal Commercial
Manufacturer part no.
171157
Showing prices

£859.54

£716.28 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 flow switch 171157 is a hydraulic sensing component used in Ideal Commercial heating appliances. It monitors water movement through the circuit and signals the control board when flow is established, allowing the appliance to sequence correctly through ignition and run. This version carries a 17 second designation and is listed under the Ideal Commercial parts range.

Signs this part needs replacing

  • The appliance fails to fire or drops out shortly after a demand for heat or hot water
  • Intermittent operation, with the burner cutting in and out without a clear pattern
  • Lockout or fault codes relating to water flow appearing on the controls
  • No response from the appliance when the pump is clearly running and flow is present
  • Erratic behaviour that persists after the system has been checked for air and circulation problems

Before you order

  • Confirm your appliance model and serial number against the compatibility list before ordering
  • Check the number on the existing component against 88024738 to make sure it matches
  • Inspect the sealing washers and connections on removal, as these are often disturbed during replacement
  • Work on the appliance should be carried out by a competent engineer in line with the manufacturer's instructions

Not sure which part?

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