Heatline Boiler Pressure Gauge Ref. D004090673

Airsol boilers compatible with reference D004090673

Pressure gauge with reference D004090673. 18 verified compatibilities: Capriz 25 and Capriz 25S.

Proven compatibility

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. D004090673 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.

1. Find the reference printed on the installed part and check whether it matches the catalogue reference D004090673. If it is not visible, do not identify the part from its shape alone.
2. Check the full boiler model on its data plate and look for it in the model associations on this page.
3. Compare the connections and physical body with the original part before installation.
4. If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.

Symptoms and faults that the pressure gauge D004090673 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 pressure gauge always stays at the same reading, no matter what I do with the filling valve.

  Cause: An internal mechanism that is blocked does not respond to actual pressure changes and remains fixed on a false reading.

  Open and close the filling valve while observing if the needle moves; if it never reacts, the fault is with the pressure gauge.

• 02

  The pressure reading doesn't match what the installer told me or what it showed before.

  Cause: With use, the mechanism loses accuracy and the reading deviates from the actual circuit pressure even though it continues to move.

  Compare the reading before and after bleeding a radiator: if the pressure change is not reflected in the needle, confirm the fault of the pressure gauge.

• 03

  The glass or the dial is cracked, and I don't trust what it indicates.

  Cause: A bump or the passage of time can damage the casing without the measuring mechanism actually being broken.

  If only the glass is damaged and the needle moves normally when bleeding or refilling, consider if the issue is merely cosmetic before replacing the entire part.

• 04

  The boiler gradually loses pressure, and I'm not sure if it's the pressure gauge or a real leak in the installation.

  Cause: A pressure gauge with a leak at its own connection can give the impression that the circuit is losing water when it is not.

  Mark the level on the gauge with a marker and check if it drops only when the boiler is running or also when it's cold and off; this way you can distinguish a real leak from a fault in the pressure gauge.

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.

Airsol D004090673 pressure gauge datasheet

Catalogue reference

D004090673

Brand

Airsol

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.

Pressure range

0-4 bar