Description

Ideal / Keston 181974 PCB KM821 I3 Kit – Replacement for 179042 | Logic + MAX Combi Boilers

Upgrade your boiler with the Ideal / Keston 181974 PCB KM821 I3 Kit, a replacement for Part No. 179042. Designed for precise control of your boiler’s functions, this PCB ensures reliable operation, optimal heating, and consistent hot water supply.

This high-quality PCB is compatible with a wide range of Ideal and Keston boilers:

Compatible Boilers & GC Numbers

Ideal Logic + Combi Series

• Logic + Combi C24 – GC No. 47-349-15

• Logic + Combi C30 – GC No. 47-349-16

• Logic + Combi C35 – GC No. 47-349-17

Ideal MAX Combi C Series

• MAX Combi C C24 – GC No. 47-349-56

• MAX Combi C C30 – GC No. 47-349-57

• MAX Combi C C35 – GC No. 47-349-58

Keston Combi Series

• Keston C30 Combi – GC No. 47-930-03

• Keston C35 Combi – GC No. 47-930-08

• Why Choose the Keston / Ideal 179042 PCB?

  • OEM PCB replacement kit

  • Compatible with multiple Keston, Ideal, and Morco boilers

  • Ensures safe and reliable electronic control of your boiler

  • Trusted by engineers across the UK

  • Same-day dispatch (before 1pm) & fast UK delivery

  • Backed by warranty and 30-day returns

Frequently Asked Questions

1. What boilers are compatible with the Ideal / Keston 181974 PCB KM821 I3 Kit?

This PCB fits Ideal Logic+ Combi C24, C30, C35, Ideal MAX Combi C24, C30, C35, and Keston C30 and C35 Combi boilers. Always check your boiler’s manufacturer part number before ordering to confirm compatibility.

2. What does the PCB do in a boiler?

The PCB (Printed Circuit Board) is the central control unit of the boiler. It manages heating cycles, ignition, temperature control, and ensures safe and efficient operation.

3. When will my order be dispatched?

Orders received before 1:00 PM (Monday–Friday) are shipped the same day. Orders placed after 1:00 PM or during weekends are dispatched on the next working day.

4. Can I fit the PCB myself?

It is strongly recommended that installation is carried out by a qualified heating engineer. This ensures the part is fitted correctly and the boiler continues to operate safely.

5. What should I do if the PCB is faulty after installation?

If the PCB does not function properly after professional installation, contact your engineer to double-check the setup. You may also return the part under the supplier’s 30-day return policy for further assistance.