Boiler Thermometer ZW20 KD - Eurostar - Novatherm
The Eurostar and Novatherm ZW20 KD boiler thermometer measures and controls the pressure and temperature of your boiler circuit. If this part fails, you will notice incorrect readings, which may cause the boiler to lock out due to a false lack of pressure or not regulate the temperature properly. This thermometer is compatible with models such as ZWE 24, ZWE, ZW20, ZW20J, ZR, and ZWR, among others. A technician must confirm through diagnosis whether it needs to be replaced if you observe issues with the pressure or temperature readings.
- Type of part
- Pressure gauges & aquastats
- Status
- Refurbished
- Catalogue reference
- 8717208028
- Warranty
- 1 year
Junkers boilers compatible with reference 8717208028
Pressure gauge with reference 8717208028. Six confirmed compatibilities: ZWE 24 and ZWE.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Junkers ZWE 24 | Eurostar | Contrasted |
| Junkers ZWE | Eurostar | Contrasted |
| Junkers ZW20 | Novastar | Contrasted |
| Junkers ZW20J | Novastar | Contrasted |
| Junkers ZR | ZR | Contrasted |
| Junkers ZWR | ZWR | 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. 8717208028 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 8717208028. 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 on the manometer 8717208028
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 even though the boiler is hot.
Cause: The bulb or the capillary of the thermometer has lost the fluid and no longer moves the needle.
Touch the supply pipe or compare it with a contact thermometer to confirm that the water is indeed heating.
- 02
The glass is broken or scratched and the scale cannot be read.
Cause: It is wear or damage to the thermometer, it does not affect the operation of the boiler.
Note the thread diameter and the bulb length of your current part before purchasing, so that the spare part fits correctly.
- 03
The bulb or the capillary has a leak or is bent.
Cause: The capillary transports the fluid that raises the needle; if it loses liquid or bends, the thermometer stops responding.
Check the capillary path behind the panel and look for any damp spots or bends before replacing.
- 04
The temperature reading does not match the actual one.
Cause: The bulb sensor has become uncalibrated and no longer transmits the actual temperature.
Compare the reading with a contact thermometer at the same point on the pipe before declaring the part defective.
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.
Junkers pressure gauge 8717208028
- Catalogue reference
- 8717208028
- Uniclima internal SKU
- MTBZW20KD23
- Brand
- Junkers
- Type of part
- Pressure gauges & aquastats
- 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.
- Temperature scale
- 20-120 °C
- Type
- bulb sensor thermometer
Frequently asked questions about the pressure gauge 8717208028
Does the thermometer of the ZW20 KD measure pressure or just temperature?
For which boilers is the ZW20 KD thermometer compatible?
When should I replace the thermostat of the ZW20 KD?
What is the reference for the ZW20 KD thermometer?
How many models are compatible with the thermometer ZW20 KD?
Are there documented fault codes for the ZW20 KD thermostat?
Spare parts related to Junkers Eurostar
