Junkers spare parts and boiler assistance
Check the Junkers spare parts catalog by model and reference. The linked examples identify specific items; always compare the complete boiler code with that of the part.
Junkers in Madrid: home repair and spare parts by reference
We repair Junkers boilers in Madrid and some nearby towns, and we sell Junkers spare parts by reference. Attention by appointment only, Monday to Friday from 9:00 to 18:00. The home diagnosis costs €60.50 (€50 + VAT) and is included in the repair if you accept the quote. The repair comes with a 6-month warranty and the spare parts have a 1-year warranty. We are an independent technical service, not the official service of the manufacturer.
The catalog includes more than 240 Junkers references (consultation as of November 1, 2026), mainly from Euromaxx, Eurosmart, Cerastar, Euroline, Eurostar, and Cerapur. We ship spare parts to mainland Spain and to 24 EU countries (not to the Balearic Islands, Canary Islands, Ceuta, or Melilla). Google rating: 4.6 out of 5 with 460 reviews.see all reviews).
| Part | Junkers models in the catalog | See |
|---|---|---|
| Control boards | Euroline ZW 23, Eurosmart ZWA 24-1, Cerastar ZWR 24-2, Cerapur Comfort ZWBC 30-2 C and Ceraclass Excellence ZWC. | Junkers electronic control boards |
| Circulating pumps | Euroline ZW 23 AE, Eurosmart ZWA 24-1 AM, Ceraclass Excellence ZWC 35-3 and Cerapur Comfort ZWBC 30-2 C23. | Junkers pumps |
| Flow detectors and turbines | Euroline ZW 23 AE and ZWC 24/28. | Flow sensors |
| 3-way valves | Euromaxx ZWC 28-1, Cerapur Comfort ZWBC 30-2 C23, Novastar ZW20 and ZW23-1 AE. | 3-way valves |
| Plate heat exchangers | Euromaxx ZWC 24/28, Euroline ZW23 AE, Cerastar ZWN 24-7, and Cerapur ZWBC 30-2 C. | Plate heat exchangers |
Technical sheets: Euroline PCB ZW 23, Euroline flow detector ZW 23 AE 23 and Eurosmart control board ZWA 24-1 AM, ref. 8748300488Before purchasing, compare the complete model and the reference: a brand match is not enough.
Fault guides by model: Euroline ZW 23, Eurosmart, Cerastar, Cerapur Comfort and Ceraclass Excellence ZWC 35More in Junkers fault codes.
Do you prefer that a technician checks it? Look at the Junkers technical service in Madrid or make an appointment from contact.
Junkers spare parts by reference
The following links open specific articles from the catalog. Check if the technical sheet describes the complete part, a subset, or an actuator, as well as the model and reference.
- Junkers Cerapur Comfort PCB ZWBC 30-2C, ref. 8748300923
- Junkers Cerastar ZWR 24-2 PCB, ref. 8715400068
View all Junkers spare parts · PCBs · 3-way valves · flow detectors
Junkers CerapurComfort ZWBC 25-2 C guide
This guide mentions the variant ZWBC 25-2 C; the catalog example is ZWBC 30-2C. Do not extrapolate the reference or the indications from one variant to another.
Repair, maintenance, and installation
The inquiry about service and the purchase of a spare part are distinct steps. The service page of Junkers describes the scope of assistance and the options to request it.
Frequently asked questions
Do you repair Junkers boilers in Madrid?
Yes. A technician will come to your home, locate the fault, and provide you with a fixed quote before touching anything. We serve Madrid and some nearby towns. Appointments are required, Monday to Friday from 9:00 AM to 6:00 PM. The on-site diagnosis costs €60.50 (€50 + VAT) and is included in the repair if you accept the quote.
How do I know which Junkers spare part I need?
Read the complete model on the rating plate (for example, Euroline ZW 23, Eurosmart ZWA 24-1 AM or Cerapur Comfort ZWBC 30-2 C) and note the reference of the old part. The same range has variants with different parts: do not extrapolate the reference from one variant to another.
What warranty do Junkers repairs and spare parts have?
6 months on repairs and 1 year on spare parts. This is Uniclima's warranty, not the manufacturer's. We ship spare parts to mainland Spain and to 24 EU countries (not to the Balearic Islands, Canary Islands, Ceuta, or Melilla).