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Andrews Thermal Fuse 7700305

Andrews

Andrews Thermal Fuse 7700305

Thermal fuse for Andrews water heaters, part number 7700305, used to cut the power supply when the appliance overheats.

At a glance

  • Also known as 1822866
Manufacturer part no.
7700305
Showing prices

£53.04

£44.20 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 7700305 is a thermal fuse used in Andrews water heaters. It is a safety device that interrupts the electrical supply when the appliance reaches an unsafe temperature, protecting the unit from overheating damage. It is fitted as part of the water heater's control and safety circuit.

Signs this part needs replacing

  • The water heater fails to fire or produce hot water
  • The appliance cuts out shortly after ignition or during a heating cycle
  • A continuity test across the fuse reads open circuit
  • The fuse has operated repeatedly, pointing to an underlying overheat fault

Before you order

  • Confirm your appliance model against the fit list above
  • Check that the part number 7700305 matches the component being replaced
  • Investigate why the fuse operated before fitting a replacement, as an underlying fault may still be present
  • If unsure, have the appliance checked by a qualified heating engineer

Not sure which part?

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