Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Ideal Printed Circuit Board Mexico FF Sub Assembly 170665

Ideal

Ideal Printed Circuit Board Mexico FF Sub Assembly 170665

Ideal 170665 sub assembly printed circuit board for Mexico FF and Henrad FS appliances, controlling boiler processes and safety shutdowns.

At a glance

  • Part type: Printed circuit board (PCB) sub assembly
  • Also known as 1177772, N1024-2
Manufacturer part no.
170665
GC number
E26-401
Showing prices

£303.52

£252.93 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 Ideal 170665 is a sub assembly printed circuit board (PCB) used across the Ideal Mexico FF and Henrad FS range of appliances. The board monitors and controls every process occurring throughout the system, reading inputs from switches, thermostats and sensors and acting on them. It also enforces the appliance's safety measures, shutting down boiler functions when internal readings indicate a fault such as high pressure or low water level.

Signs this part needs replacing

  • The appliance locks out or fails to fire, with the fault returning after a reset
  • Repeated or intermittent fault codes that point to the control board rather than a sensor or thermostat
  • The boiler runs erratically, with no consistent response to demand from the programmer or room thermostat
  • Safety shutdowns triggered without an obvious cause such as genuine high pressure or low water level
  • Visible damage, corrosion or burning on the board itself

Before you order

  • Check the GC number and model of the appliance against the compatibility list before ordering, as the same board is used across a number of Mexico FF and Henrad FS variants
  • Confirm the part number on the existing board matches 170665, and cross-check the alternative numbers listed below where the original marking has faded
  • Isolate the electrical supply to the appliance before removing or fitting the board

Not sure which part?

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