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Main Flow Sensor 5111383

Main

Main Flow Sensor 5111383

Main flow sensor with clips, part 5111383, for Multipoint FF and Multipoint FF ErP water heaters.

At a glance

  • Appliance family: Main Multipoint FF water heaters
  • Also known as 1160735
Manufacturer part no.
5111383
GC number
H18-889
Showing prices

£136.28

£113.57 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 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 Main 5111383 is a flow sensor supplied with clips, used on Main Multipoint FF water heaters. It detects water flow through the appliance so the control system can initiate and modulate heating. It is a serviceable component within the water heater assembly.

Signs this part needs replacing

  • No hot water demand registered when a tap is opened
  • Appliance fails to fire or fires intermittently despite adequate flow
  • Fault code or lockout relating to water flow detection
  • Erratic or inconsistent hot water output as flow is misread
  • Visible damage, debris build-up or leakage around the sensor body

Before you order

  • Confirm the appliance model is a Main Multipoint FF or Multipoint FF ErP
  • Check the existing sensor and its connections against the part number 5111383
  • Inspect the clips and wiring harness for damage before fitting
  • Isolate the water and power supplies before carrying out any work

Not sure which part?

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