PCB Celtic 1.30 / Celtic 2.20 / Celtic RSCB / GM-15-20 Ref. 79932-N
When you turn on the tap or activate the heating, the PCB Celtic 1.30 / Celtic 2.20 / Celtic RSCB / GM-15-20 Ref. 79932-N is responsible for controlling the ignition, the modulation of the burner, and the operation of the pump in your boiler. If this part fails, you will notice that the boiler does not start, gets locked, or exhibits erratic behavior, potentially displaying faults such as 3 02, 3 03, or 3 05. It is compatible with models such as Celtic 18/23 RSCE, Celtic 2.20 RSc b, and GM 2-20 RSc b, among others. It should be replaced when you observe these symptoms or faults in the system.
VAT included
Consult via WhatsAppChaffoteaux boilers compatible with reference 60079932
PCB with reference 60079932. Four confirmed compatibilities: Celtic 18/23 RSCE and Celtic 2.20 RSc b.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Chaffoteaux Celtic 18/23 RSCE | Chaffoteaux Celtic RSc b / RSCE (18-23 kW) | Contrasted |
| Chaffoteaux Celtic 2.20 RSc b | Chaffoteaux Celtic RSc b / RSCE (18-23 kW) | Contrasted |
| Chaffoteaux Celtic 2.24 RSc b | Chaffoteaux Celtic RSc b / RSCE (18-23 kW) | Contrasted |
| Chaffoteaux GM 2-20 RSc b | Chaffoteaux GM RSc b | 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 part number 60079932 is the one 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 60079932. 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 60079932 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 ignite and when opening the PCB, the fuse is blown.
Cause: The fuse protects the control circuit; if it blows, it cuts off the power to the PCB even if the rest of the boiler is in good condition.
Before replacing the PCB, just replace the 7A 24V fuse and check if it blows again immediately; that indicates a short circuit at another point in the circuit.
- 02
The room thermostat is calling for heat, but the boiler does not start.
Cause: The thermostat demand enters the PCB through terminal TA; if that circuit fails, the ignition command does not reach even if the thermostat is functioning properly.
Directly bridge the two TA terminals on the PCB to force the demand and check if the boiler starts before replacing it.
- 03
The boiler works with the manual switch but does not respond to any external control.
Cause: When the PCB receives power but does not process the input signals correctly, the unit may start forcibly but does not respond to the automatic control.
Check the wires that connect to terminal TA and their connections before considering the PCB as the cause of the fault.
Fault codes Chaffoteaux that this part resolves
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 3 02 | Communication error between the internal electronics (PCB) and other modules/HMI. | The main PCB may fail in its communication bus or not supply the correct voltage/ground to the display; check HMI↔PCB wiring, regulated 5 V, and continuity. If everything is correct, the PCB is damaged. |
| 3 03 | Main PCB fault. | Self-diagnosis detects an internal fault in the PCB (micro/EEPROM, relays, power supply); confirm voltages 230 V/24 V/5 V, fuses, and tracks. If after reset and verifications it persists, replace the PCB. |
| 3 05 | Main PCB fault. | Internal fault of the PCB (shorts/moisture/faulty components); check supply and regulations on the board and signs of damage. If the error reappears, the repair involves replacing the PCB. |
| 3 06 | Main PCB fault. | Internal fault of the control electronics; confirm stable 5 V/12 V, relays, and solder joints. If there are no external anomalies, the cause is the PCB itself. |
| 3 07 | Main PCB fault. | Critical anomaly detected in the PCB (e.g., microcontroller or supervision failure); if it persists after reset and verification of voltages/cabling, proceed to 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 Chaffoteaux 60079932 PCB.
- Catalogue reference
- 60079932
- Brand
- Chaffoteaux
- 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.
- Code printed on PCB
- 79932-N
- Secondary code/batch
- 100A 94 46
- Fuse
- 7A 24V
- Label terminal ambient thermostat
- TA 24V
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Chaffoteaux GM 2-20 RSc b Manual (PDF)Document © Chaffoteaux, provided as a technical reference.
Frequently asked questions about the PCB 60079932
What code is printed on the PCB of the Celtic 1.30?
Does this PCB work for the GM-15-20 in addition to the Celtic range?
What fuse does the PCB of the Celtic 2.20 use?
Spare parts related to Chaffoteaux Chaffoteaux Celtic RSc b / RSCE (18-23 kW)
