Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Andrews Thermal Fuse DHN Set E774

Andrews

Andrews Thermal Fuse DHN Set E774

Thermal fuse DHN set for Andrews water heaters, part number E774.

At a glance

  • Also known as 1821469
Manufacturer part no.
E774
Showing prices

£51.72

£43.10 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 E774 thermal fuse DHN set is a safety component for Andrews water heaters. It provides overheat protection by interrupting the heat source if the appliance exceeds its safe operating temperature. The set is supplied under manufacturer reference SBA7398.

Signs this part needs replacing

  • No hot water or heating despite a call for heat
  • The appliance locks out repeatedly after an overheat event
  • The thermal fuse shows an open circuit when tested with a multimeter
  • The water heater fails to ignite following a high-temperature trip

Before you order

  • Confirm your appliance model against the fit list above
  • Check the part number E774 matches the component you are replacing
  • Investigate the cause of the fuse failure before fitting a new one, as thermal fuses are designed to fail once

Not sure which part?

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