
Zilmet ZB 100 Plate Heat Exchanger Junkers ZWC 24-1 MFA - Ref. 8716771039
Brazed plate heat exchanger manufactured by Zilmet, model ZB 100, with 24 plates, suitable for a temperature range of -10°C to +120°C. In the boiler, it acts as a heat exchanger between the primary and secondary circuits, transferring heat between both. It is replaced when leaks, loss of performance, or scaling that reduces water flow appear. Manufactured in Italy.
VAT included
Consult via WhatsAppJunkers boilers compatible with reference 8716771039
Plate heat exchanger with reference 8716771039. 19 verified compatibilities: ZWC 24-1 MFA and ZWC 24-1 MFK.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Junkers ZWC 24-1 MFA | Euromaxx | Contrasted |
| Junkers ZWC 24-1 MFK | Euromaxx | Contrasted |
| Junkers ZWC 24-1 MF2A | Euromaxx | Contrasted |
| Junkers ZWC 24-1 MF2K | Euromaxx | Contrasted |
| Junkers ZWC 28-1 MFA | Euromaxx | Contrasted |
| Junkers ZWC 28-1 MFK | Euromaxx | Contrasted |
| Junkers ZWC 28-1 MF2A | Euromaxx | Contrasted |
| Junkers ZWC 28-1 MF2K | Euromaxx | Contrasted |
| Junkers ZWC 24-3 MFA | Ceraclass Excellence | Contrasted |
| Junkers ZWC 24-3 MFK | Ceraclass Excellence | Contrasted |
| Junkers ZWC 28-3 MFA | Ceraclass Excellence | Contrasted |
| Junkers ZWC 28-3 MFK | Ceraclass Excellence | Contrasted |
| Junkers ZWC 35-3 MFA | Ceraclass Excellence | Contrasted |
| Junkers ZWB 24-3 C | Cerapur (Smart/Balcony/Incasso) | Contrasted |
| Junkers ZWB 28-3 C | Cerapur (Smart/Balcony/Incasso) | Contrasted |
| Junkers ZWB 28-1 AB | Cerapur (Smart/Balcony/Incasso) | Contrasted |
| Junkers ZWB 28-1 EB | Cerapur (Smart/Balcony/Incasso) | Contrasted |
| Junkers ZWB 28-1 AI | Cerapur (Smart/Balcony/Incasso) | Contrasted |
| Junkers ZWB 28-1 EI | Cerapur (Smart/Balcony/Incasso) | Contrasted |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if ref. 8716771039 is the part for your boiler
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 8716771039. If it is not visible, do not identify the part by its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Symptoms and faults that the plate heat exchanger 8716771039 resolves.
The plate heat exchanger transfers heat to the domestic hot water. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
You have no hot water or the temperature changes for no reason.
Cause: The plates of the heat exchanger are filled with scale and do not transfer heat well.
Check the water hardness and if there is visible limescale in other parts of the installation before replacing it.
- 02
Do you see water or moisture between the plates or coming out of the heat exchanger casing?
Cause: The heat exchanger has a leak, either between plates or at its connection with the circuit.
Dry the area well and turn on the boiler to locate the exact point of the leak before disassembling.
- 03
The pressure or flow rate of the domestic hot water circuit is low, although the rest of the installation is functioning well.
Cause: A partially obstructed heat exchanger narrows the water flow and reduces the available flow rate.
Check the cold water inlet filter; it is the most common cause before considering the heat exchanger.
- 04
Do you hear a whistle when the hot water comes out?
Cause: The deposits narrow the channels between the plates, causing the water to flow under pressure and generating noise.
Check if the noise changes according to the flow of the tap, that confirms it comes from a blockage.
These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.
Data sheet for Junkers plate heat exchanger 8716771039
- Catalogue reference
- 8716771039
- Brand
- Junkers
- Type of part
- Plate heat exchanger
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Data read on the part and in the manufacturer's documentation
What we have not been able to verify does not appear here.
- Manufacturer (label logo)
- Zilmet
- Model
- ZB 100
- Number of PCBs
- 24
- Temperature range (T system)
- -10°C / +120°C
- Country of manufacture
- Italy (MADE IN ITALY)





