Description
PCB For Ferroli Boiler Optimax HE Plus 25 S 39821523 39821520
The Ferroli Optimax HE Plus 25 S PCB plays a vital role in keeping your boiler working safely and efficiently. This essential boiler circuit board manages functions such as ignition, fan speed, pump control, and safety shutoff. The 39821523 (which replaces 39821520) restores full function at a fraction of the cost of a new unit.
Compatible Boilers
To help you find the right fit, this part is compatible with the following models:
Ferroli Optimax HE Plus Series:
Optimax HE Plus 25 OV (GC No. 41-267-30)
Optimax HE Plus 31 C (GC No. 47-267-44)
Optimax HE Plus 38 C (GC No. 47-267-45)
If you’re looking for a Ferroli Maxima 35s Boiler Display PCBÂ or any other different Ferroli PCB, follow the link provided.
Why Choose This Product?
This refurbished Ferroli Optimax PCB helps you avoid costly replacements while keeping your boiler safe. It’s a tested and approved solution for managing temperature, pump speed, and ignition control. Every board passes strict inspections before sale. You get reliable performance at a lower cost, without compromising quality. It’s a smart, budget-friendly way to fix common PCB faults.
Delivery and Return
Place your order before 1 PM for same-day dispatch. Choose between standard or next-day delivery options at checkout. If the part isn’t needed, you can return it within 30 days unused and in its original packaging.
For safety and compliance, please hire a Gas Safe registered engineer for installation.
FAQs
1. What boilers is the Ferroli PCB 39821523 compatible with?
This PCB fits Ferroli Optimax HE Plus series boilers, including Optimax HE Plus 25 OV, 31 C, and 38 C models.
2. Does this PCB replace any other part numbers?
Yes, the 39821523 replaces the older part number 39821520 for the Optimax HE Plus 25 S.
3. What functions does this PCB control?
The PCB manages boiler functions such as ignition, fan speed, pump control, and safety shutoff to ensure efficient and safe operation.
4. Can I install this PCB myself?
For safety and compliance, it is recommended to have a Gas Safe registered engineer install the PCB.
5. Does this PCB come with a warranty?
Yes, the replacement PCB comes with a 12-month warranty for reliable performance and assurance.










