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Hamworthy Slave Control Box 573407073

Hamworthy

Hamworthy Slave Control Box 573407073

Slave control box for Hamworthy Milborne 501 and 502 wall hung condensing boilers.

At a glance

  • Part type: slave control box
Manufacturer part no.
573407073
Showing prices

£84.40

£70.33 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 Hamworthy Slave Control Box is a boiler control component used on Milborne wall hung condensing appliances. It carries the manufacturer description Slave Electric Box Milborne 501502 and manages slave-side control functions within the boiler's electrical assembly. It is supplied as a single unit.

Signs this part needs replacing

  • The boiler does not respond to the room thermostat or programmer
  • The appliance shows no power or no display at the control panel
  • The boiler fires intermittently or locks out without an obvious fault elsewhere
  • Control functions behave erratically across the slave circuit
  • Fault codes relating to the control box or its wiring appear on the appliance

Before you order

  • Confirm the appliance is a Hamworthy Milborne 501 or 502 wall hung condensing boiler
  • Check the existing control box reference against the manufacturer description before ordering
  • Establish whether the boiler requires the slave or the master control box for the fault being addressed
  • Inspect the wiring harness and connectors for damage before fitting the replacement

Not sure which part?

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