Junkers Ceraclass Excellence ZWC 35 3 MFA Valve Ref. 8747003700
RefurbishedJunkersGas valves

Junkers Ceraclass Excellence ZWC 35 3 MFA Valve Ref. 8747003700

65 €VAT includedIn stock · 5 units

Gas valve: refurbished spare part that regulates and modulates the gas flow to the burner. Useful if there are ignition faults or the flame does not modulate. Compatible with ZWC 24/28-1 MFA, ZWC 24/28-1 MFK, ZWC 24/28-3 MFA (ref. 8747003700). Includes a one-year warranty and delivery within 2–4 working days in the EU.

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

Key Data

Reference
8747003700
Brand
Junkers
Type of part
Gas valves
Available units
5 units in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 8747003700) equips these models. Verified compatibility; check the reference before purchasing.

Ceraclass Excellence / Comfort (ZWC)

  • ZWC 24/28-1 MFA
  • ZWC 24/28-1 MFK
  • ZWC 24/28-3 MFA
  • ZWC 24/28-3 MFK
  • ZWC 24-1 MF2A
  • ZWC 24-1 MF2K
  • ZWC 28-1 MF2A
  • ZWC 28-1 MF2K
  • ZWC 28/32-1 MFA
  • ZWC 30/30-3 MFA
  • ZWC 35/35-3 MFA

Ceraclass Excellence (ZSC - heating only)

  • ZSC 24-3 MFA
  • ZSC 24-3 MFK
  • ZSC 28-3 MFK
  • ZSC 30-3 MFA
  • ZSC 35-3 MFA

Cerastar / Ceraclass (ZC - heating only)

  • ZC 24-1 MFA
  • ZC 24-1 MFK
  • ZC 24-1 MF2A
  • ZC 28-1 MFA
  • ZC 28-1 MFK

Eurostar / Cerastar (ZWE / ZWSE)

  • ZWE 23-4 A
  • ZWE 24-4 HA
  • ZWE 24-4 HK
  • ZWE 28-4 HA
  • ZWSE 23-4 MFK
  • ZWSE 28-4 MFA
  • ZWSE 28-5 MFA
  • ZWSE 35-6 MFA

ZWN

  • ZWN 24-7 AE
  • ZWN 24-7 KE

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)
FAAfter the gas disconnection: The flame is still detected.The gas valve does not close tightly (leak/blockage) and the control continues to read ionisation current even though the gas has been cut off. Verify with a leak test and observe that the ionisation signal disappears when closed, and that the solenoid valve closes correctly.
d7Fault in the regulating valve.The electronics detect a fault in the gas valve (open/shorted coils or jammed mechanism). Check control voltage and coil continuity/ohmage, and ensure the valve opens/closes by measuring pressure on the ramp.
How do I know if this gas valve is the one for my boiler?
Verify the reference 8747003700 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a SIT part.
What is it used for?
The gas valve regulates and modulates the gas flow to the burner.
Ignition faults, does not modulate, or smells of gas?
It could be the gas valve. IMPORTANT: gas handling ONLY by an authorised technician.
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
Installation and pressure adjustment by authorised technician; mandatory leak check.
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.

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