Air Pressure Switch 605.99478 For Fagor FE 24AE 1N - Ref. MU0500112
Air Pressure Switch 605.99478 for Fagor FE 24AE 1N - Ref. MU0500112. This part checks the air pressure and allows the boiler to operate correctly. If it fails, you will notice that the boiler does not start or gets locked, which may generate the fault code F-2: the air pressure switch does not detect air circulation or is faulty. It is compatible with models such as Fagor FE 24 E, FE 24 AE, and ECOCOMPACT FE 20 E, among others. A technician must confirm through diagnosis whether it needs to be replaced when there are faults in pressure detection or it prevents the boiler from starting.
- Type of part
- Pressure switches
- Status
- Refurbished
- Catalogue reference
- MU0500112
- Warranty
- 1 year
Fagor boilers compatible with reference MU0500112
Pressure switch with reference MU0500112. Six confirmed compatibilities: FE24E/1B and FE24E/1N.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Fagor FE24E/1B | Fagor Super Compact FE 24 E / FE 24 AE | Contrasted |
| Fagor FE24E/1N | Fagor Super Compact FE 24 E / FE 24 AE | Contrasted |
| Fagor FE24EC1N | Fagor Super Compact FE 24 E / FE 24 AE | Contrasted |
| Fagor FE24AE/1N | Fagor Super Compact FE 24 E / FE 24 AE | Contrasted |
| Fagor ECOCOMPACT FE20E | Fagor ECOCOMPACT FE 20 E | Contrasted |
| Fagor FEB23E1B | Fagor FEB 23 E | 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. MU0500112 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 MU0500112. 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 in the pressure switch MU0500112
The pressure switch controls the air or water pressure to authorize operation. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler tries to ignite several times and locks out with the fan running.
Cause: The pressure switch does not close the contact even though the fan is working, so the control board does not allow the gas to flow.
Before changing it, check that the silicone pressure intake tube is not bent, broken, or disconnected from the fan.
- 02
The problem occurs especially with strong winds or intense cold.
Cause: Air currents in the flue gas outlet can prevent the pressure switch from reaching the necessary pressure differential to operate.
Check the flue terminal outside: if it is blocked, bent, or too exposed to the wind, correct that before considering replacing the part.
- 03
The pressure switch clicks, but the boiler still locks out.
Cause: It may switch mechanically and still not close the electrical contact properly if the terminals are dirty or oxidized.
With the boiler disconnected, use a multimeter to check that the pressure switch shows continuity when pressure is applied manually.
Fagor fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| F-2 | The air pressure switch does not detect air circulation or is faulty (lockout). | The air pressure switch MU0500112 does not switch when the fan starts due to an internal fault or incorrect +/− connections; check the continuity of contacts while the fan starts and apply vacuum to the connections, and inspect hoses and polarity. |
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.
Fagor MU0500112 pressure switch datasheet
- Catalogue reference
- MU0500112
- Uniclima internal SKU
- PFFE24AE1N
- Brand
- Fagor
- Type of part
- Pressure switches
- 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.
- Manufacturer code
- 605.99478
- Switching pressure
- 89/74 Pa
- Electrical feature
- 0,2(0,1)/30~
Frequently asked questions about the pressure switch MU0500112
Is this pressure switch of the FE 24AE 1N for air or water?
At what pressure does the pressure switch of the Fagor FE 24AE 1N switch?
When should this air pressure switch be replaced in the Fagor FE 24AE 1N?
Spare parts related to Fagor Fagor Super Compact FE 24 E / FE 24 AE
