
Honeywell Gas Valve Saunier Duval ThemaClassic F 24 E Ref. 115 018 D
Honeywell gas valve for Saunier Duval ThemaClassic F 24 E boilers and similar models. It regulates the flow of butane-propane gas to the burner through a 24 VDC modulating coil and 220 Vac and 24 Vac solenoids. Maximum allowable pressure: 60 mbar. The replacement requires first confirming the fault of the part through technical diagnosis, even when the boiler does not ignite or does not modulate the flame correctly.
- Type of part
- Gas valves
- Status
- Refurbished
- Catalogue reference
- S1071500
- Warranty
- 1 year
Saunier Duval boilers compatible with reference S1071500
Gas valve with reference S1071500. 28 verified compatibilities: C24E and C25E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval C24E | Themafast | Contrasted |
| Saunier Duval C25E | Themafast | Contrasted |
| Saunier Duval C28E | Themafast | Contrasted |
| Saunier Duval C30E | Themafast | Contrasted |
| Saunier Duval F24E | Themafast | Contrasted |
| Saunier Duval F25E | Themafast | Contrasted |
| Saunier Duval F25E H-MOD | Themafast | Contrasted |
| Saunier Duval F30E | Themafast | Contrasted |
| Saunier Duval F30E H-MOD | Themafast | Contrasted |
| Saunier Duval C24E | Themaclassic | Contrasted |
| Saunier Duval C25E | Themaclassic | Contrasted |
| Saunier Duval F24E | Themaclassic | Contrasted |
| Saunier Duval F25E | Themaclassic | Contrasted |
| Saunier Duval F AS 24E | Themaclassic | Contrasted |
| Saunier Duval F AS 25E | Themaclassic | Contrasted |
| Saunier Duval F AS 30E | Themaclassic | Contrasted |
| Saunier Duval C24E | Thematek | Contrasted |
| Saunier Duval F24E | Thematek | Contrasted |
| Saunier Duval F30E H-MOD | Isofast | Contrasted |
| Saunier Duval F35E H-MOD | Isofast | Contrasted |
| Saunier Duval C16E | Opalia | Contrasted |
| Saunier Duval F11E | Opalia | Contrasted |
| Saunier Duval F14E | Opalia | Contrasted |
| Saunier Duval F17E | Opalia | Contrasted |
| Saunier Duval C24E | Thema | Contrasted |
| Saunier Duval C25E | Thema | Contrasted |
| Saunier Duval F24E | Thema | Contrasted |
| Saunier Duval F25E | Thema | 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. S1071500 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 S1071500. 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 gas valve S1071500
The gas valve regulates and modulates the gas flow to the burner. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler does not ignite: you can hear the attempt, but no gas reaches the burner.
Cause: The solenoid of the valve does not receive or execute the opening command from the control unit.
Measure with the multimeter that current is reaching the connector of the gas valve during the ignition attempt, before replacing it.
- 02
The flame either fires at maximum power or shuts off by itself without reason.
Cause: The modulating coil is not properly regulating the gas flow, and the valve is operating in an all-or-nothing manner instead of modulating.
Check that the connector of the modulating coil is properly fitted and free of corrosion before replacing the entire gas valve.
- 03
After turning off the boiler, there is still a gas smell for a while.
Cause: The shut-off solenoid does not seal completely, leaving a small residual gas passage.
With the boiler cold and turned off, check the outlet of the valve to the burner with soapy water before concluding that it does not close.
- 04
The boiler performs worse or locks up when there is higher gas consumption in the home.
Cause: In butane-propane installations, a valve that no longer regulates well is more sensitive to pressure variations from the bottle or tank.
Measure the level of the bottle or tank and the outlet pressure of the gas regulator before declaring the fault on the gas valve.
Fault codes Saunier Duval that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| F1 | Ignition fault. | The gas block S1071500 does not open or is misaligned and does not provide flow during the spark attempt; check with a manometer at the valve ports (inlet/outlet) and measure voltage/continuity in coils during startup. |
| F.28 | Start-up fault: ignition failed. | Fault in the gas valve assembly (block S1071500) or in its stepper motor prevents opening/modulating the gas during startup; check flow pressure and valve operation (measurement at ports and coil supply) during the ignition attempt. |
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 Saunier Duval gas valve S1071500.
- Catalogue reference
- S1071500
- Uniclima internal SKU
- VGBPTF24E
- Brand
- Saunier Duval
- Type of part
- Gas valves
- Units in stock
- 7 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Part data and available documentation
Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.
- Reference
- 115 018 D
- Manufacturer code
- CE-448M85J1
- Honeywell model
- VK8525M1052
- Modulating coil voltage
- 24 VDC
- Modulating coil power
- 6 VA
- Gas
- Butane-Propane
- Degree of protection
- IP20
- Maximum pressure
- 60 mbar
- Solenoid voltage I1
- 220 Vac (6 VA)
- Solenoid voltage V2
- 24 Vac (6 VA)
- Classification
- Group 1 Class B+B
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval ThemaClassic F25E Manual (PDF) Document © Saunier Duval, provided as a technical reference.












