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Main Flow Restrictor 5111386

Main

Main Flow Restrictor 5111386

Main 5111386 flow restrictor rated at 14 litres for Multipoint FF and Multipoint FF ErP water heaters.

At a glance

  • Appliance family: Multipoint FF water heaters
  • Also known as 1160744
Manufacturer part no.
5111386
GC number
H18-893
Showing prices

£55.97

£46.64 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 Main 5111386 is a flow restrictor rated at 14 litres, used in Main Multipoint FF water heaters. It controls the rate at which water passes through the appliance so the unit operates within its designed flow parameters. It is a serviceable component and is replaced when flow control is lost or the restrictor becomes blocked or damaged.

Signs this part needs replacing

  • Water flow through the heater is higher or lower than the rated 14 litres
  • Outlet temperature fluctuates or the heater struggles to hold a steady delivery
  • Scale or debris visible in or around the restrictor, restricting flow
  • Water weeping from the restrictor seating or housing
  • The restrictor is cracked, distorted or has been removed and lost

Before you order

  • Confirm the appliance model and GC number against the manufacturer's parts list
  • Check the existing restrictor is rated at 14 litres before ordering
  • Inspect the surrounding housing and seals for scale or damage that may also need attention

Not sure which part?

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