PartsByCodespare parts by code

Printed Circuit Board - Optimax HE

Part number (MPN)
39821523
Check compatibility

Type your appliance model: we compare it with the 7 appliances in our sources.

Catalogue numberChecked sources
Direct linkseBay and Amazon
Free to useNo sign-up

Parts for the same appliances

OEM Replacement Part & Compatibility Table

Brand
Guide price (£)
Not available: check the current price with the seller
Source
retailer parts list
checked 2026-11-06
Fitting notes

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

Compatible appliances

Always check the model and serial number on the data plate before ordering.

Frequently asked questions

Which appliances does 39821523 fit?

The sources we checked list 39821523 (Printed Circuit Board - Optimax HE, Ferroli) for: Ferroli Optimax HE 25S, Ferroli Optimax HE 31C, Ferroli Optimax HE 31S, Ferroli Optimax HE 38C, Ferroli Optimax HE Plus 18 Ov, Ferroli Optimax HE Plus 25 Ov, Ferroli Optimax HE Plus 38C. Always check the model and serial number on the data plate before ordering.

Does 39821523 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 39821523. Ask a Ferroli stockist to confirm.

What should I check before fitting 39821523?

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

View on eBay

Some lists are dated and the part may have been superseded. Information only, compatibility not guaranteed.