Junkers Euromaxx Water Fitting ZWC 24/28-1 MFA 23 Ref. 87167713850
If you notice water leaks, pressure loss, or problems with hot water production, you may need the Junkers Euromaxx ZWC 24/28-1 MFA 23 water fitting, reference 87167713850. This hydraulic component is responsible for directing and distributing water between the boiler circuits. It is installed in models such as ZWC 24-1 MFA 23, ZWC 24/28-1 MFA 23, and 28-1 MFA 23, among others. It is advisable to replace it upon detecting these symptoms to avoid further damage to your heating system.
VAT included
Consult via WhatsAppCompatible Junkers boilers
Hydraulic group. Three confirmed compatibilities: 24-1 MFA 23 and 24/28-1 MFA 23.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Junkers 24-1 MFA 23 | ZWC | Contrasted |
| Junkers 24/28-1 MFA 23 | ZWC | Contrasted |
| Junkers 28-1 MFA 23 | ZWC | 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 it 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 —. 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 hydraulic group resolves
The hydraulic group includes the valve, the by-pass, and the water connections. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
Water is leaking right at the fitting area, with moisture or limescale buildup around it.
Cause: The plastic has cracked over the years due to the repeated expansion of hot water, and it is losing its tightness.
Dry the area well, turn on the boiler, and check with a flashlight if the water is coming exactly from the body of the fitting or from a nearby joint.
- 02
The boiler gradually loses pressure and the circuit needs to be refilled every few days.
Cause: A microcrack in the fitting is slowly leaking water, sometimes without any visible dripping.
Measure the pressure in both cold and hot conditions for a couple of consecutive days to confirm that the loss is consistent and not occasional.
- 03
The fitting feels softened, discolored, or brittle near the threads.
Cause: Plastic ages due to the continuous heat from the domestic hot water circuit and loses mechanical strength.
Check the condition of the O-rings or clips of the fitting: often the fault lies in the O-ring and not in the plastic body.
- 04
Rust is appearing on the metal parts around the fitting.
Cause: A constant drip, even if minimal, eventually leads to the oxidation of nearby fittings and screws over time.
Carefully tighten the clamps and nearby screws; sometimes the dripping comes from a loose fitting and not from the cracked connector.
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.
Junkers hydraulic group datasheet
- Brand
- Junkers
- Type of part
- Hydraulic units
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Junkers 24/28-1 MFA 23 manual (PDF)Document © Junkers, provided as a technical reference.
Frequently asked questions about the hydraulic group
Does the water fitting with reference 87167713850 fit a Junkers Euromaxx ZWC 24-1 MFA 23 boiler?
What material is the water fitting of the Junkers Euromaxx ZWC 24/28-1 made of?
Is there a different variant of this water fitting for the ZWC 24-1 MFA 23?
Spare parts related to Junkers ZWC
