Safety Valve Combitek F 23 E Ref. 05728700
The safety valve releases water when the circuit pressure exceeds the usual limit of 3 bar. If it fails, you will notice that it drips continuously or does not discharge when it should. This model is installed in the Combitek F 23 E, C 23 E boilers, as well as in Thema and Themaplus, among others. It is important to replace it when you observe these symptoms to avoid greater problems in the system.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 05728700
Safety valve with reference 05728700. Six confirmed compatibilities: C 23 E and F 23 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval C 23 E | Combitek | Contrasted |
| Saunier Duval F 23 E | Combitek | Contrasted |
| Saunier Duval C 23 E | Thema | Contrasted |
| Saunier Duval F 23 E | Thema | Contrasted |
| Saunier Duval C 23 E | Themaplus | Contrasted |
| Saunier Duval F 23 E | Themaplus | 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 the reference 05728700 is the part for your boiler
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 05728700. 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 and faults that the safety valve 05728700 resolves.
The safety valve releases pressure when the circuit exceeds its setting. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
Water is continuously leaking from the discharge pipe.
Cause: The internal seat of the gas valve does not seal properly and does not close completely.
Check if the dripping changes when bleeding the expansion vessel or when lowering the filling pressure of the circuit before replacing the gas valve.
- 02
The valve is leaking water with the boiler cold, without the temperature having risen.
Cause: It can open prematurely if the internal spring is worn out or if the circuit has too much pressure when cold.
Measure the filling pressure in cold of the circuit with the manometer and adjust it if it is too high, before replacing the gas valve.
- 03
The circuit gradually loses pressure and needs to be refilled often.
Cause: A valve that does not close properly allows water to escape intermittently, although the dripping may not always be noticeable to the naked eye.
Mark the pressure gauge level one day and compare it to the next without touching the boiler, to confirm the loss before changing the part.
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 safety valve 05728700
- Catalogue reference
- 05728700
- Brand
- Saunier Duval
- Type of part
- Safety valves
- Units in stock
- 5 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Data read on the part and in the manufacturer's documentation
What we have not been able to verify does not appear here.
- maximum pressure
- 3 bar
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval F 23 E Manual (PDF)Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the safety valve 05728700
Is this valve suitable for the Thema F 23 E boiler?
When should the safety valve of the Themaplus C 23 E be replaced?
Spare parts related to Saunier Duval Combitek
