Circulator Pump Junkers/Bosch Ceraclass Excellence ZWC 35-3 Ref. 8716010791
The Junkers/Bosch Ceraclass Excellence ZWC 35-3 circulation pump is responsible for moving water through the heating circuit of the boiler. If it fails, you will notice cold radiators, strange noises, overheating, and blockages due to lack of circulation. This model is compatible with several boilers from the Ceraclass Excellence range, such as the ZWC 35/35-3 MFA, among others. A technician must confirm through diagnosis whether it is necessary to replace the pump when the mentioned symptoms occur or the fault code F7: Circulation pump failure is displayed.
- Type of part
- Pumps
- Status
- Refurbished
- Catalogue reference
- 8716010791
- Warranty
- 1 year
Junkers boilers compatible with reference 8716010791
Circulating pump with reference 8716010791. A proven compatibility: ZWC 35/35-3 MFA.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Junkers ZWC 35/35-3 MFA | Ceraclass Excellence | 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. 8716010791 is the part for your boiler
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 8716010791. 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 that require diagnosis in the circulator pump 8716010791
The circulation pump circulates the water in the heating circuit. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler does not heat the house even though it seems to turn on normally.
Cause: If the pump does not move the water, the heat does not reach the heating circuit.
Check if the pump vibrates or makes noise when requesting heating: if it is completely silent, it is not spinning.
- 02
Noise from the pump, like a continuous humming or knocking
Cause: It is usually due to air in the circuit or a worn bearing in the pump.
Bleed the heating circuit from the highest point before changing the part.
- 03
Water leaks around the pump area
Cause: The shaft seal wears out over time and starts to allow water to pass through.
Locate the exact point of the leak: if it comes right from the pump shaft, confirm the worn seal.
- 04
The water circulates poorly: some radiators heat up while others remain cold.
Cause: A pump that loses power does not distribute the flow properly throughout the circuit.
Bleed each radiator and check that the valves are open before blaming the pump.
Junkers fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| F7 | Fault in the circulation pump | The boiler is not heating the water as it should. This may be due to the circulation pump not functioning. Check if the pump is in good condition and if it is receiving power. |
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 8716010791 circulation pump.
- Catalogue reference
- 8716010791
- Uniclima internal SKU
- BCJCEZWC3535
- Brand
- Junkers
- Type of part
- Pumps
- Units in stock
- 7 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 ZWC 35/35-3 MFA Manual (PDF) Document © Junkers, provided as a technical reference.
Frequently asked questions about the circulator pump 8716010791
Is this circulating pump suitable for a Bosch Ceraclass Excellence ZWC 35-3 MFA?
Is it also suitable for an Elm Leblanc Megalis NGVA 28-35?
Is the reference 8716010791 for this pump verified?
What boiler fault is resolved by replacing this pump?
