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Ariston Low Voltage Wiring 999387

Ariston

Ariston Low Voltage Wiring 999387

Ariston low voltage wiring, part 999387, for use in listed EST, Microcombi, Microtec and R2 gas boiler models.

At a glance

  • Also known as 1577558
Manufacturer part no.
999387
Showing prices

£11.22

£9.35 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

This is a low voltage wiring harness manufactured by Ariston, carrying part number 999387. It forms part of the low voltage electrical circuit on the appliance, linking control and sensing components within the boiler. It is listed under gas boiler spares in the wiring category.

Signs this part needs replacing

  • Intermittent boiler operation or faults that clear and return without a mechanical cause
  • Error codes or lockouts linked to control or sensor communication
  • No response from the boiler when a demand is applied at the controls
  • Visible damage to the lead, such as chafed, cracked, brittle or heat-affected insulation
  • Loose, corroded or poorly seated connectors at either end of the harness

Before you order

  • Confirm your appliance model and edition against the fit list above
  • Check the part number on the existing lead matches 999387
  • Compare the connector count, shape and lead routing with the wiring being replaced
  • Isolate the electrical supply and follow the manufacturer's instructions before fitting

Not sure which part?

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