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Andrews Freeze Preventive Heater Z378

Andrews

Andrews Freeze Preventive Heater Z378

Freeze preventive heater Z378 for Andrews Fastflo water heaters, protecting the appliance from frost damage in cold conditions.

At a glance

  • Also known as 1824244
Manufacturer part no.
Z378
Showing prices

£74.26

£61.88 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 Z378 is a freeze preventive heater for Andrews water heaters. It is listed for the Andrews Fastflo range and the wider Andrews hot water spares group. The heater guards the appliance against frost damage during cold weather.

Signs this part needs replacing

  • Frost or ice forming on the appliance or its pipework in cold weather
  • The heater element stays cold when power is applied
  • No continuity or an open circuit reading across the heater
  • Repeated cold-weather lockouts or frozen water lines
  • Visible corrosion, cracking or scorching on the heater body or its leads

Before you order

  • Confirm your appliance model against the Fastflo listings above
  • Check the part number Z378 on the component being replaced
  • Verify the electrical supply and rating match the existing heater
  • Isolate the power supply before removing or fitting the heater

Not sure which part?

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