Gas Valve Saunier Duval Themafast Condens F 30 Ref. 0020084502
RefurbishedSaunier DuvalGas valves

Gas Valve Saunier Duval Themafast Condens F 30 Ref. 0020084502

85 €VAT includedIn stock · 1 unit

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 Thema Condens F30, Thema Condens AS 25-A, Themafast Condens 30 (ref. 0020084502). Includes a one-year warranty and delivery within 2–4 working days in the EU.

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

Key Data

Reference
0020084502
Brand
Saunier Duval
Type of part
Gas valves
Available units
1 unit in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 0020084502) equips these models. Verified compatibility; check the reference before purchasing.

Thema Condens

  • Thema Condens F30
  • Thema Condens AS 25-A

Themafast Condens

  • Themafast Condens 30
  • Themafast Condens 30-A

Themaplus Condens

  • Themaplus Condens 30-A
  • Themaplus Condens F30 A-1

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)
F.26Fault: gas valve not functioning.The stepper motor/coils of the valve do not operate and the gas block does not open; check continuity and resistance of coils, presence of control voltage at the connector, and wiring up to the PCB.
F.27Safety shutdown: incorrect flame detection.Non-sealed gas solenoid valve allows gas to pass when it should be closed, generating a 'false flame'; check valve tightness/closure (closure test and pressure drop, verification with analyser).
F.28Start-up fault: ignition failed.The gas valve does not open or is misadjusted and does not supply the necessary flow; check gas pressure, voltage to the valve during the ignition attempt, and adjustment/function of the gas block (e.g., test P.01/CO₂).
F.61Gas valve control fault.Short circuit/ground in the harness to the valve or damaged coils prevent its activation; check wiring, measure coil resistance, and check for control signal from the electronics.
F.62Gas valve fault. Disconnection delay.The valve takes time to close or remains leaking after extinguishing the flame; verify airtight closure and that the flame signal disappears when cutting off the gas, and check/correct the valve if it persists.
How do I know if this gas valve is the one for my boiler?
Verify the reference 0020084502 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 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.

Spare Parts Related Boiler Themafast Condens F 30

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