Satronic PCB For Baxi Roca Neobit Condens 24 24F Boiler - Ref. 7773502
Satronic PCB for Baxi Neobit Condens 24 24F - Ref. 7773502. This control board regulates the ignition, burner modulation, pump, and safety features of the boiler. When it fails, the boiler may not start, become locked, or operate erratically. It is compatible with models such as Baxi Neobit Condens 24/24 F and Victoria Condens 24/24 F, among others. It is recommended to replace it when there are operational issues or communication errors with other components.
VAT included
Consult via WhatsAppBaxi boilers compatible with reference 7773502
PCB with reference 7773502. Two confirmed compatibilities: Neobit Condens 24/24 F and Victoria Condens 24/24 F.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Baxi Neobit Condens 24/24 F | Baxi | Contrasted |
| Baxi Victoria Condens 24/24 F | Baxi | 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. 7773502 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 7773502. 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 PCB 7773502 resolves.
The PCB controls the ignition, modulation, and safety features of the boiler. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler tries to ignite, you can hear the crackling of the spark, but it locks out without igniting.
Cause: The Satronic combustion control manages the ignition and shuts off if it does not detect a flame within the safety time.
Check the ignition electrode and the flame detection electrode before declaring the PCB faulty.
- 02
The boiler is completely unresponsive: the display does not turn on and no indicator lights are on.
Cause: A fault in the power supply or in the microcontroller of the PCB prevents the boiler from operating.
Check the internal fuse and ensure that power is reaching the PCB before replacing it.
- 03
The fault appears and disappears on its own, without you changing anything: sometimes it ignites and other times it does not.
Cause: A relay or a solder joint with intermittent contact on the PCB can cause faults that are not consistent.
With the boiler turned off and unplugged, gently tap the PCB and see if the fault changes: this is an indication of a loose connection before replacing it.
- 04
The display shows a fault code that does not match any in the manual table.
Cause: It may be due to a fault in the memory or firmware of the PCB, causing erratic readings.
Note the exact code and compare it with the manufacturer's manual of the boiler before deciding on the replacement.
Fault codes Baxi that this part resolves
| Code | Fault | Diagnosis and solution |
|---|---|---|
| E.00 .04 | Return temperature sensor not connected. | A loose/oxidised connector or an open wire in the harness 7773502 causes the return NTC to be 'unseen' by the PCB. Check pin-to-pin continuity of the harness between the sensor and the PCB and the ohmic resistance of the NTC. |
| E.00 .05 | Return temperature sensor in short circuit. | A chafing or crossing between conductors of the harness 7773502 can close the NTC circuit, and the PCB interprets it as a short circuit. Check the NTC and harness insulation; if the NTC measures correctly, inspect/replace the harness. |
| E.04 .02 | Flow temperature sensor not connected. | Loss of contact in the NTC flow connector within the harness 7773502 causes 'sensor not connected'. Check continuity of the harness to the PCB and the ohmic reading of the NTC. |
| E.04 .05 | Flue gas sensor not connected. | If the connector/branch of the flue gas sensor in the harness 7773502 is loose or open, the PCB detects 'flue sensor not connected'. Check continuity of the branch and connection at PCB/sensor. |
| E.02 .17 | Permanent lack of communication between the gas valve and the boiler PCB. | A faulty contact or cut wire in the harness 7773502 (gas valve branch) prevents communication/commands from the PCB. Check continuity of the branch, connector firmness, and control voltage according to the model's diagram. |
| H.01 .00 | Temporary communication failure between the gas valve and the boiler PCB. | Vibration or moisture can cause intermittencies in the valve branch within the harness 7773502; the equipment reports temporary communication loss. Check connectors, fastening, and continuity; if it reappears, replace the harness. |
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 Baxi 7773502 PCB.
- Catalogue reference
- 7773502
- Brand
- Baxi
- Type of part
- PCBs (control boards)
- 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.
- PCB manufacturer
- Satronic
Frequently asked questions about the PCB 7773502
Is this Satronic PCB compatible with any Baxi Neobit?
Spare parts related to Baxi Baxi
