Junkers Ceraclass Excellence ZWC 35 3 Circulating Pump Ref. 8716010791
RefurbishedJunkersPumps

Junkers Ceraclass Excellence ZWC 35 3 Circulating Pump Ref. 8716010791

70 €VAT includedIn stock · 5 units

Circulating pump: refurbished spare part that circulates water in the heating circuit. Useful if there is noise, water is not circulating, or radiators do not heat evenly. Compatible with ZWC 35/35-3 MFA (ref. 8716010791). Includes a one-year warranty and delivery within 2–4 working days in the EU.

1
Consult via WhatsApp
Delivery in 2–4 working days
1-year warranty
14-day return
Technical support

Key Data

Reference
8716010791
Brand
Junkers
Type of part
Pumps
Available units
5 units in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 8716010791) equips these models. Verified compatibility; check the reference before purchasing.

Ceraclass Excellence

  • ZWC 35/35-3 MFA

Fault codes related to this part (not the entire boiler). They usually have more possible causes: first rule out electrodes, wiring/connections, and gas supply. Verified with ≥3 sources.

CodeWhat does it mean?Cause and diagnosis (this part)
d4Excessive temperature too high (gradient limitation).If the circulating pump is blocked or not rotating, the flow rate drops and the temperature of the thermal block rises very quickly, activating d4. Check by forcing the pump to run in service/permanent operation mode and ensuring that the rotor is spinning and the ΔT decreases.
E9The temperature limiter of the thermal block or flue gases (STB) has been activated.A stopped/seized pump prevents circulation and causes overheating until the STB trips and E9 appears. Verify with the pump test (service function), by listening/vibration of the circulator and confirming temperature recovery after restoring the flow.
How do I know if this circulating pump is the one for my boiler?
Verify the reference 8716010791 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.
What is it used for?
The circulating pump circulates the water through the heating circuit.
Noise, water not circulating, or cold radiators?
Typical symptoms: humming, seized rotor after a long stop, or radiators that do not heat evenly.
Which models is it suitable for?
Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.
Installation and recommendations
Bleed the air from the circuit and the pump; check the pressure at 1–1.5 bar with the boiler cold.
What does refurbished mean and what coverage does it have?
Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.

Spare Parts Related Boiler Ceraclass Excellence ZWC 35 3

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