Junkers ZW 20-1 KE Boiler Thermometer Ref. 8717208027
When you turn on the tap or start the heating, the thermometer of the Junkers ZW 20-1 KE boiler ensures that the temperature is maintained at the appropriate levels. This pressure gauge measures and controls the pressure and temperature of the boiler circuit. If it fails, you will notice incorrect readings, which can cause the boiler to lock out due to a false lack of pressure or not regulate the temperature properly. It is compatible with several models from the ZW range, such as the 20-1 AME and the 24-3 KE, among others. It is recommended to replace it when you start to observe these symptoms.
VAT included
Consult via WhatsAppJunkers boilers compatible with reference 8717208027
Pressure gauge with reference 8717208027. Six confirmed compatibilities: 18 and 24-3 KE.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Junkers 18 | ZR/ZWR | Contrasted |
| Junkers 24-3 KE | ZR/ZWR | Contrasted |
| Junkers 20-1 AME | ZW | Contrasted |
| Junkers 20-1 KE | ZW | Contrasted |
| Junkers 24 | ZWE | Contrasted |
| Junkers 28-2 AE | ZWE | 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 ref. 8717208027 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 8717208027. 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 pressure gauge 8717208027 resolves.
The manometer shows the pressure of the boiler circuit. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The needle does not move and always shows the same reading.
Cause: The capillary has lost the liquid that measures the water temperature.
Check if the capillary is bent, crushed, or wet due to a leak before replacing it.
- 02
The thermometer shows a temperature that does not match the heat you feel from the boiler.
Cause: The bulb may not be properly positioned in its sleeve and may not measure the water directly.
Check that the bulb is properly inserted in its housing and has not loosened with use.
- 03
The dial is damaged, broken, or scratched and cannot be read properly.
Cause: It is a physical damage to the instrument that does not always mean that the internal mechanism has stopped functioning.
Before changing it, check if the needle moves when starting the boiler despite the poor condition of the glass.
- 04
The reading has not been reliable for some time, even though the thermometer still shows something.
Cause: The capillary mechanism can gradually become misaligned before failing completely.
Compare the reading of the thermometer with the actual temperature measured with a contact device in the same pipe.
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 Junkers 8717208027 pressure gauge.
- Catalogue reference
- 8717208027
- Brand
- Junkers
- Type of part
- Pressure gauges - Aquastats
- Units in stock
- 1 unit
- 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 scale
- 20-120 °C
- Component reference
- 8717208027
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Junkers 20-1 KE manual (PDF)Document © Junkers, provided as a technical reference.
Frequently asked questions about the pressure gauge 8717208027
Does this thermometer with reference 8717208027 work for the Junkers ZW 20-1 KE boiler?
How can I tell that reference 8717208027 is the correct one for my Junkers boiler?
What temperature scale does the thermometer of the Junkers ZW 20-1 KE indicate?
When should the thermostat be replaced in Junkers ZR/ZWR and ZW 20-1 boilers?
Spare parts related to Junkers ZR/ZWR
