PCB Junkers Cerastar ZWR 24 2 Ref. 8715400068
The Junkers Cerastar ZWR 24-2 includes the PCB, which is responsible for controlling functions such as ignition, burner modulation, the pump, and the safety features of the boiler. If this part fails, you will notice that the boiler does not start, locks out, or exhibits erratic behavior. You might see fault codes such as F0, F1, F7, E0, or b2. This model is compatible with the Cerastar ZWR 24 range, among others. It is recommended to replace it in case of recurring faults or when the mentioned symptoms occur.
VAT included
Consult via WhatsAppJunkers boilers compatible with reference 8715400068
PCB with reference 8715400068. Two confirmed compatibilities: Cerastar ZWR 24 (series) and Cerastar ZWR 24-2 (ADE/KDE).
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Junkers Cerastar ZWR 24 (series) | Junkers | Contrasted |
| Junkers Cerastar ZWR 24-2 (ADE/KDE) | Junkers | 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. 8715400068 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 8715400068. 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 8715400068 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 shows no signs of life: no display, no fan, nothing when powered on.
Cause: The PCB is the one that distributes the current to all the components; if it doesn't work, nothing turns on.
Before assuming that the PCB is broken, check the main fuse of the installation and the switch of the boiler.
- 02
A fixed fault code appears on the display and the boiler locks out as soon as you try to operate it.
Cause: The electronics detect a problem and stop the ignition for safety.
Note the exact code and perform a reset; if the same code returns immediately, it is more likely to be a problem with the PCB than a one-time fault.
- 03
The wall control doesn't change anything even if you move it: the boiler doesn't respond to it.
Cause: The module that communicates with the remote control is on the PCB and stops receiving commands.
Make sure that the remote control cable is properly connected to the terminals of the PCB before replacing it.
- 04
The boiler turns on, runs for a while, and then stops on its own without any apparent reason, repeatedly.
Cause: The PCB loses the signal from a sensor and interrupts the cycle for safety even though the boiler is functioning properly.
Check that the connectors of the temperature sensors are properly fitted into the PCB.
Fault codes from Junkers that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F0 | Internal fault in the PCB. | The control board has an internal fault. Check that it is receiving power and inspect the connectors. If the problem persists after resetting and reviewing, the PCB needs to be replaced. |
| F1 | Error in the data of the PCB. | The data on the control board is corrupted or faulty. Check the voltages and perform a factory reset. If the fault reappears, the PCB is defective and needs to be replaced. |
| F7 | The boiler detects a flame even though it is off. | The PCB may be misreading the flame due to moisture or a fault in its input. Dry and check the board, and measure the ionization signal. If the problem persists after checking the electrodes and gases, the board needs to be replaced. |
| E0 | Fault in the main PCB. | The main PCB has a fault. Try turning the boiler off and on and check the PCB. If the fault returns, the PCB needs to be replaced. |
| b2 | Error in the data of the PCB. | The control board has a data error. Check the cables and perform a factory reset. If the fault reappears, the PCB needs to be replaced. |
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 Junkers 8715400068 PCB.
- Catalogue reference
- 8715400068
- Brand
- Junkers
- Type of part
- PCBs (control boards)
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- 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.
- capacitor capacity
- 100µF
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Junkers Cerastar ZWR 24 (series) manual (PDF)Document © Junkers, provided as a technical reference.
Frequently asked questions about the PCB 8715400068
Is this PCB suitable for a Junkers Cerastar ZWR 24-2 KDE?
