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Main Wiring Harness High Voltage 7223338

Main

Main Wiring Harness High Voltage 7223338

High voltage wiring harness for Main Eco Elite System ErP boilers, part number 7223338.

Manufacturer part no.
7223338
Showing prices

£63.60

£53.00 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 high voltage wiring harness (part number 7223338) is a Main component used on Eco Elite System ErP boilers. It carries mains-voltage connections between the boiler's electrical components, forming part of the appliance's internal wiring loom. It is supplied as a single harness assembly.

Signs this part needs replacing

  • The boiler fails to fire or cuts out intermittently with no obvious mechanical cause
  • Fault codes relating to electrical supply, fan, pump or ignition circuits appear
  • Visible damage to the harness, such as scorched, brittle or cracked insulation
  • Loose, corroded or heat-damaged connector terminals that will not seat securely
  • Continuity faults traced through the harness during electrical testing

Before you order

  • Confirm your appliance model against the fit list above
  • Check the serial number of the boiler, as fitment varies by production run
  • Verify that your appliance is a System variant, not a combi or heat-only model
  • Compare the connector layout and number of plugs on the existing harness before ordering

Not sure which part?

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