Demrad Kalisto BK/BKC/HK/HKC 224-228 PCB - Ref. 3003201229
The control PCB manages the ignition, burner modulation, pump, and safety features of the boiler. If it fails, the boiler may not start, lock out, or exhibit erratic behavior. This board is compatible with models such as the Kalisto BK 224, Kalisto BK 228, Kalisto BKC 224, among others. It may display fault codes such as F61, F63, F64, F65, or F67. It is recommended to replace it when these issues are detected or if the boiler shows faults in its operation.
VAT included
Consult via WhatsAppAirsol boilers compatible with reference 3003201229
PCB with reference 3003201229. Nine confirmed compatibilities: Kalisto BK 224 and Kalisto BK 228.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Airsol Kalisto BK 224 | Demrad | Contrasted |
| Airsol Kalisto BK 228 | Demrad | Contrasted |
| Airsol Kalisto BKC 224 | Demrad | Contrasted |
| Airsol Kalisto BKC 228 | Demrad | Contrasted |
| Airsol Kalisto HK 224 | Demrad | Contrasted |
| Airsol Kalisto HK 228 | Demrad | Contrasted |
| Airsol Kalisto HKC 224 FE | Demrad | Contrasted |
| Airsol Kalisto HKC 228 FE | Demrad | Contrasted |
| Airsol Tayros Digital (models with LCD display) | Demrad | 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. 3003201229 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 3003201229. 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 3003201229 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 does not turn on and the display remains completely black.
Cause: The PCB is not receiving power from the system, including the display.
Check the fuse and the 230V input wiring before replacing the PCB.
- 02
A fault code appears on the screen that does not disappear even after resetting the boiler.
Cause: The electronics continue to detect a fault in the circuit that maintains the lock.
Note the code and check which component it corresponds to before assuming it's the PCB.
- 03
The LCD display appears blurry, with lines or missing segments.
Cause: The part of the PCB that controls the display is faulty.
Check that the display connector is properly seated before replacing the entire PCB.
- 04
The boiler turns on but does not respond when the temperature is changed from the control.
Cause: The PCB does not process the user's commands correctly.
Disconnect and reconnect the boiler from the power supply to rule out a temporary hang before replacing it.
Fault codes for Airsol that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F61 | Fault in the main PCB. | The PCB can fail in the control circuit (e.g., output to gas valve/eBUS), triggering the self-diagnosis. Check 230 V and 5/12 V on the PCB, connectors, and DSN code; if everything is correct and the issue persists, replace the PCB. |
| F63 | Memory fault in the main PCB. | Memory corruption/defect in the PCB. Try a reset and check DSN; if not resolved, verification points to replacing the board. |
| F64 | Fault in main PCB (rapid fluctuation of flow/return sensor). | The ADC of the PCB interprets impossible variations of the NTC; if wiring and sensors are fine, the origin is in the electronics of the board. Check connections and, if it persists, replace the PCB. |
| F65 | Fault in main PCB (excessive electronic temperature). | Overheating of the PCB electronics (power supply). Check ventilation/dissipation and connections; if there are no external causes, the PCB is damaged and must be replaced. |
| F67 | Fault in main PCB (flame signal on PCB). | The flame detection circuit on the PCB interprets an anomalous signal; if the electrode, ground, and wiring are correct, the fault lies in the control board. Confirm by measuring and, if it persists, replace the PCB. |
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 PCB Airsol 3003201229
- Catalogue reference
- 3003201229
- Brand
- Airsol
- Type of part
- PCBs (control boards)
- Units in stock
- 5 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Frequently asked questions about the PCB 3003201229
Is this PCB with reference 3003201229 suitable for the Demrad Kalisto BKC 228?
Is this PCB suitable for the Demrad Tayros Digital?
Is the same PCB used for the HKC 224 FE and the HKC 228 FE?
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