Saunier Duval Thema/Themaplus/Combitek 23 Thermomanometer Ref. 05726400
Analog thermometer-manometer mounted on the boiler panel, with a dial indicating water temperature (approximately 0-120 °C) and circuit pressure (0-4 bar). It allows for a quick check to see if the system has sufficient pressure to operate. It should be checked or replaced when the needle does not indicate correctly, the glass is broken, or there is a leak at the circuit connection.
Spare parts related to Saunier Duval Thema
Saunier Duval boilers compatible with reference 05726400
Pressure gauge with reference 05726400. 11 confirmed compatibilities with two independent sources: Thema F AS 23 E and Thema C AS 23 E. Verify the printed reference on your part before purchasing.
Compatibility confirmed
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Thema F AS 23 E | Thema | Confirmed · 2 sources |
| Saunier Duval Thema C AS 23 E | Thema | Confirmed · 2 sources |
| Saunier Duval Thema F 23 E | Thema | Confirmed · 2 sources |
| Saunier Duval Thema C 23 E | Thema | Confirmed · 2 sources |
| Saunier Duval Thema C 23 a | Thema | Confirmed · 2 sources |
| Saunier Duval Themaplus F 23 E | Themaplus | Confirmed · 2 sources |
| Saunier Duval Themaplus C 23 E | Themaplus | Confirmed · 2 sources |
| Saunier Duval Combitek C 23 | Combitek | Confirmed · 2 sources |
| Saunier Duval Combitek C 23 E | Combitek | Confirmed · 2 sources |
| Saunier Duval Combitek F 23 | Combitek | Confirmed · 2 sources |
| Saunier Duval Combitek F 23 E | Combitek | Confirmed · 2 sources |
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. 05726400 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.
- Locate the reference printed on the body of the pressure gauge you have installed: it should indicate 05726400.
- Check your boiler model on the nameplate and look for it in the list of compatible models on this page.
- Compare the connections and the body with the original part before installing.
- If you have any doubts, send us a photo of the screen printing via WhatsApp and we'll confirm it for you before you purchase.
Symptoms and faults resolved by pressure gauge 05726400
The pressure gauge shows the pressure of the boiler circuit. These are the typical symptoms and what to do:
The pressure needle is stuck on a number and never moves.
Cause: The internal mechanism loses precision or seizes up and stops responding to the actual pressure of the circuit.
Bleed a radiator and observe if the needle follows the pressure drop before replacing the thermometer-manometer.
There is moisture or dripping right in the area where the thermometer-manometer connects to the circuit.
Cause: The gasket of that connection degrades over the years due to pressure and temperature and starts to leak water.
Dry the area and check both when cold and hot to see if the moisture reappears before considering the part lost.
It is not clear whether the boiler is at 2 or 3 bar because the glass is fogged or scratched on the inside.
Cause: Condensation or wear on the glass over the years prevents reading the dial even if the mechanism works well.
Clean the glass from the outside and confirm if the issue is only visual before ordering the spare part.
The customer says that the boiler 'has no pressure' but it turns on and heats without any problem.
Cause: The thermometer only displays a reading and does not affect the operation of the boiler, so it can malfunction without there being an actual fault.
If the rest of the boiler's symptoms are normal, first suspect the reading before adjusting the circuit pressure.
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.
Saunier Duval 05726400 pressure gauge datasheet
- OEM reference
- 05726400
- Brand
- Saunier Duval
- Type of part
- Pressure gauges - Aquastats
- Units in stock
- 3 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.
- Temperature range (dial)
- 0-120 °C
label - Pressure range (gauge)
- 0-4 bar
label
- The manufacturer of this part is not listed on the label or in external sources: neither of the two photographed sides has legible markings.
- The manufacturer's code or reference for the component is not known. The reference shown on the store's product sheet today cannot be considered valid: it is not confirmed by the label or any source.
- Before ordering, visually check the diameter of the gauge and the type of connection of your current thermometer-manometer, as there is no manufacturer data to verify it otherwise.
- Compatibility is limited to the listed boiler models (Combitek, Thema, Themaplus C/F 23 E); verify the exact model of your boiler before purchasing.