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Andrews Spill Switch Wiring Harness 7703874

Andrews

Andrews Spill Switch Wiring Harness 7703874

Wiring harness for the spill switch on Andrews water heaters, supplied under part number 7703874.

At a glance

  • Part type: spill switch wiring harness
  • Also known as 1823030
Manufacturer part no.
7703874
Showing prices

£100.78

£83.98 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 Andrews spill switch wiring harness, part number 7703874, is a wiring assembly that provides the electrical connection between the spill switch and the appliance control circuit. It is used on Andrews water heaters, including the Classicflo range. The harness carries the spill switch signal so the appliance can respond correctly when flue products are detected spilling from the flue path.

Signs this part needs replacing

  • Spill switch faults that continue after the switch itself has been tested
  • Cracked, brittle or heat-damaged insulation along the harness
  • Corroded, loose or discoloured terminals at either end
  • Intermittent lockouts or shutdowns traced to the spill switch circuit
  • Continuity that fails when the harness is flexed or moved

Before you order

  • Confirm your appliance model against the fitment list above
  • Check the part number against the manufacturer's parts list for your model
  • Inspect the connector type and terminal arrangement on the existing harness
  • Isolate the electrical supply before removing or fitting the harness

Not sure which part?

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