Pressure Switch For Junkers Boiler ZWN24-7MFA - Ref. 8716156744
The pressure switch for the Junkers boiler ZWN24-7MFA - Ref. 8716156744 checks the air or water pressure and allows the boiler to operate correctly. If it fails, you will notice that the boiler does not start or gets locked, even if the pressure is adequate, and it may display the fault code C1: The pressure switch has been activated. It is compatible with the models ZWN24-7MFA, ZWN25-7MFA, ZWN25-8MFA, and ZWN30-8MFA from the Cerastar range, among others. It should be replaced when the boiler shows these malfunction symptoms.
VAT included
Consult via WhatsAppJunkers boilers compatible with reference 8716156744
Pressure switch with reference 8716156744. Four confirmed compatibilities: ZWN24-7MFA and ZWN25-7MFA.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Junkers ZWN24-7MFA | Cerastar | Contrasted |
| Junkers ZWN25-7MFA | Cerastar | Contrasted |
| Junkers ZWN25-8MFA | Cerastar | Contrasted |
| Junkers ZWN30-8MFA | Cerastar | 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. 8716156744 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 8716156744. 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 pressure switch 8716156744 resolves.
The pressure switch controls the air or water pressure to authorize operation. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler tries to ignite, stops, and shows a ventilation or pressure switch error.
Cause: The pressure switch verifies that the fan creates the necessary depression before opening the gas.
Make sure that the fan starts correctly and does not make any strange noises before checking the pressure switch.
- 02
The fault mainly occurs when starting up in cold conditions, in the morning.
Cause: Temperature changes make a small leak in the pipes more visible, which is not noticeable when hot.
Check the silicone tube connections of the pressure switch with the cold boiler, as this is when a leak is most noticeable.
- 03
The blockage is accompanied by a strange noise or beep from the fan just before it stops.
Cause: If the fan does not reach the proper speed, the pressure switch does not close the contact and the boiler interrupts the cycle.
Check if the noise from the fan has changed lately; a worn bearing can produce the same symptom as the pressure switch.
- 04
The fault is more common if the boiler has been inactive for a while, such as at the end of summer.
Cause: The dust or moisture accumulated in the pressure switch tube during months of inactivity can affect the reading.
Gently blow through the pressure switch tube and make sure it is free of dust and debris before replacing the part.
Fault codes from Junkers that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| C1 | The pressure switch has been activated. | This indicates a problem with the flue gas pressure. If you see that the boiler does not start and this fault code lights up, the pressure switch may be failing or there may be a blockage in the flue gas outlet. |
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.
Datasheet for Junkers pressure switch 8716156744
- Catalogue reference
- 8716156744
- Brand
- Junkers
- Type of part
- Pressure switches
- Units in stock
- 1 unit
- 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 ZWN30-8MFA manual (PDF)Document © Junkers, provided as a technical reference.
Frequently asked questions about the pressure switch 8716156744
Is this pressure switch suitable for the Junkers ZWN25-8MFA boiler?
Can the brand be read on the label of the pressure switch of the ZWN24-7MFA?
Is the same pressure switch used for the ZWN30-8MFA23S2800 and the ZWN30-8MFA31S2800?
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