Refurbished Bosch PCBs (control boards)

HT II-3 PCB · 8 748 300 503

HT II-3 PCB. Unit marking 8 748 300 503.

Type of part: PCBs (control boards)
Status: Refurbished
Catalogue reference: 8 748 300 503
Warranty: 1 year

VAT included Stock · 1 unit

Guide

How to check if reference 8 748 300 503 is the spare part for your boiler

The part reference, model, and equipment revision must be verified against the manufacturer's documentation.

The inventory bag indicates Junkers ZWC 28 1MF 2A and reference 8748300503. Check 8 748 300 503, the revision, the connectors, and the breakdown of your equipment.

Technical data

Catalogue reference: 8 748 300 503
Brand: Bosch
Type of part: PCBs (control boards)
Units in stock: 1 unit
Status: Refurbished
Warranty: 1 year
Shipping: Depending on the country; cost shown at checkout
Return: 14 days

Part data and available documentation

Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.

Screen printing: HT II-3
Circuit code: 8 748 300 503
Another printed marking: CA CA CC

Frequently asked questions

What should I check on the installed part?

The inventory bag indicates Junkers ZWC 28 1MF 2A and reference 8748300503. Check 8 748 300 503, the revision, the connectors, and the breakdown of your equipment.

Delivery to the EU in 2–6 working days Depending on the country; cost shown at checkout

1-year warranty inspected and tested

14-day return uninstalled parts

Technical support we verify your model