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Main Air Pressure Switch 5111414

Main

Main Air Pressure Switch 5111414

Air pressure switch for Main Multipoint FF and Multipoint FF ErP water heaters.

At a glance

  • Appliance family: Multipoint FF water heaters
  • Also known as 1160816
Manufacturer part no.
5111414
GC number
H18-953
Showing prices

£227.54

£189.62 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 5111414 is an air pressure switch used on Main Multipoint FF and Multipoint FF ErP water heaters. It monitors the pressure created by the fan and proves airflow before the appliance is allowed to fire. If the switch does not sense the correct pressure, the appliance will not proceed through its ignition sequence.

Signs this part needs replacing

  • The fan runs but the appliance fails to fire
  • Repeated lockouts during or shortly after the ignition sequence
  • Intermittent operation that clears and returns without any other fault
  • The appliance shuts down mid-cycle and requires a reset
  • Fault code or diagnostic indication pointing to the air pressure switch or airflow proving circuit

Before you order

  • Confirm the appliance model is a Main Multipoint FF or Multipoint FF ErP
  • Check the GC number on the appliance data badge against the model listed
  • Verify the part number 5111414 against the manufacturer's parts list for your appliance
  • Inspect the sensing tubes and connections for blockage or damage before replacing the switch

Not sure which part?

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