Pressure Gauge 0-4 Bar Boiler ZWE24-2KDG - Ref. 87172080280
The 0-4 bar pressure gauge of the ZWE24-2KDG boiler measures and controls the pressure of the circuit. If it fails, it may display incorrect readings, which can cause the boiler to lock out due to a false low pressure or fail to regulate the temperature properly. This part is compatible with several models, such as ZW20-1AME23, ZW20J, as well as the old Euroline and Cerastar series. A technician must confirm through diagnosis whether it needs to be replaced when you notice that the readings are incorrect or the boiler is experiencing operational issues related to pressure.
- Type of part
- Pressure gauges & aquastats
- Status
- Refurbished
- Catalogue reference
- 87172080280
- Warranty
- 1 year
Junkers boilers compatible with reference 87172080280
Pressure gauge with reference 87172080280. Six confirmed compatibilities: ZW20-1AME23 and ZW20J.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Junkers ZW20-1AME23 | ZW20-1AME23 (part model) | Contrasted |
| Junkers ZW20J | ZW20-1AME23 (part model) | Contrasted |
| Junkers ZS | Euroline (series ZW/ZS) | Contrasted |
| Junkers ZSR | Euroline (series ZW/ZS) | Contrasted |
| Junkers ZWR | Old Cerastar (ZR/ZWR series) | Contrasted |
| Junkers ZR | Old Cerastar (ZR/ZWR series) | 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. 87172080280 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 87172080280. 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 87172080280
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 is stuck on a number and never moves, whether you load or bleed water.
Cause: The inner Bourdon tube has seized, something common when dirt or lime has entered through the thread.
Gently tap the glass while the boiler is off; if the needle does not respond, the mechanism is stuck.
- 02
The pressure indicated by the pressure gauge does not match what you know the installation has.
Cause: The mechanism has lost precision over time and no longer calibrates the reading accurately.
Compare the reading with another reference manometer at the same load point before considering the instrument faulty.
- 03
Water is leaking or there is a ring of rust on the connection thread of the pressure gauge.
Cause: The thread's seal has deteriorated and water is leaking at low pressure.
Check if tightening the fitting a bit more solves the leak before buying a new one; if it continues to drip, it's the part.
- 04
The dial is broken or so fogged up that no numbers can be read.
Cause: It is physical damage to the body or moisture entering the mechanism, not a fault with the boiler.
Check if you can still see the needle moving even if you can't read the number clearly; that indicates the mechanism itself is working.
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 pressure gauge 87172080280
- Catalogue reference
- 87172080280
- Uniclima internal SKU
- MPBZWE24
- Brand
- Junkers
- Type of part
- Pressure gauges & aquastats
- Units in stock
- 2 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.
- Pressure gauge
- 0-4 bar
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Junkers ZW20-1AME23 manual (part model) ZW20J (PDF)Document © Junkers, provided as a technical reference.
Frequently asked questions about the pressure gauge 87172080280
Is this pressure gauge suitable for the ZWE24-2KDG boiler?
What pressure scale does the pressure gauge of the ZWE24-2KDG have?
Why does the pressure gauge of the boiler ZW20-1AME23 need to be replaced?
Is this pressure gauge suitable for any boiler with a 0-4 bar scale even if it's not on the list?
What is the reference for this manometer?
How many models are compatible with this manometer?
Spare parts related to Junkers ZW20-1AME23 (part model)
