Safety Valve Ceraclass Excellence ZWC 35-3 MFA Ref. 8716010876
The safety valve releases water if the pressure in the circuit of the Ceraclass Excellence ZWC 35-3 MFA boiler exceeds the usual limit of 3 bar. When it fails, it may drip continuously or not discharge when it should, which can cause problems in the system. This valve is compatible with other models in the Ceraclass Excellence range, such as the ZWC 35/35-3 MFA, ZWC 24/28-3 MFA, ZWC 28/28-3 MFA, and ZWC 30/30-3 MFA, among others. It should be replaced upon detecting these symptoms or if the fault code F9: Fault in the safety system appears.
VAT included
Consult via WhatsAppJunkers boilers compatible with reference 8716010876
Safety valve with reference 8716010876. Four confirmed compatibilities: ZWC 35/35-3 MFA and ZWC 24/28-3 MFA.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Junkers ZWC 35/35-3 MFA | Ceraclass Excellence (ZWC) | Contrasted |
| Junkers ZWC 24/28-3 MFA | Ceraclass Excellence (ZWC) | Contrasted |
| Junkers ZWC 28/28-3 MFA | Ceraclass Excellence (ZWC) | Contrasted |
| Junkers ZWC 30/30-3 MFA | Ceraclass Excellence (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 the ref. 8716010876 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 8716010876. If it is not visible, do not identify the part from 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 safety valve 8716010876 resolves.
The safety valve releases pressure when the circuit exceeds its setting. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The valve is continuously leaking from the discharge pipe, whether the boiler is stopped or running.
Cause: The internal seat does not seal properly, usually due to limescale or wear, and allows water to pass through at normal pressure.
Check the manometer to see that the cold pressure is normal: if it drips at normal pressure, the fault is in the seat.
- 02
The manometer shows a very high pressure and the gas valve does not activate to relieve it.
Cause: The mechanism gets stuck due to lack of use, something common in valves that have never had to operate.
Try the manual bleed, if it has one, a couple of times before replacing it: sometimes it's enough to clear the seat.
- 03
The pressure in the system gradually increases without anyone having refilled the circuit.
Cause: If the valve does not bleed that excess in time, the pressure remains accumulated instead of being released in a controlled manner.
First, rule out that the filling key is properly closed and not leaking before holding the safety valve responsible.
- 04
The puddle under the boiler appears and disappears depending on the days.
Cause: It is typical of a seat that does not close completely: it drips more when the circuit pressure increases and less when it decreases.
Compare the pressure on the manometer on the days it drips and on the days it doesn't to confirm that the pattern matches the valve.
Fault codes from Junkers that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F9 | Fault in the security system | The boiler stops because the safety system has detected a problem. This may be due to a malfunction of the safety valve. It is advisable to check this valve to ensure it is functioning properly. |
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 the Junkers 8716010876 safety valve.
- Catalogue reference
- 8716010876
- Brand
- Junkers
- Type of part
- Safety valves
- Units in stock
- 5 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Junkers ZWC 35/35-3 MFA Manual (PDF)Document © Junkers, provided as a technical reference.
Frequently asked questions about the safety valve 8716010876
Is the safety valve Ceraclass Excellence ZWC 35-3 MFA Ref. 8716010876 compatible with other models in the Ceraclass Excellence range?
What fault codes are documented for this gas valve?
What is the reference for the safety valve Ceraclass Excellence ZWC 35-3 MFA?
What should I do if my boiler shows fault code F9?
Where can I find more information about the safety valve Ceraclass Excellence ZWC 35-3 MFA?
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