PCB Junkers ZWC24 1MF2A 23 Ref. 87483004490
The Junkers ZWC24 1MF2A 23 PCB is the component that controls the ignition, burner modulation, pump, and safety features of the boiler. If it malfunctions, the boiler may fail to start, lock out, or operate erratically, displaying fault codes such as F7 or FA. This PCB is compatible with several models from the Euromaxx range, including ZWC24 and ZWC28, among others. It is advisable to replace it when these symptoms are detected to restore the proper functioning of the boiler.
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Consult via WhatsAppJunkers boilers compatible with reference 87483004490
PCB with reference 87483004490. 12 verified compatibilities: ZWC24-1MF2A23 and ZWC24-1MF2A31.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Junkers ZWC24-1MF2A23 | Euromaxx ZWC24 | Contrasted |
| Junkers ZWC24-1MF2A31 | Euromaxx ZWC24 | Contrasted |
| Junkers ZWC24-1MFA23 | Euromaxx ZWC24 | Contrasted |
| Junkers ZWC24-1MFA31 | Euromaxx ZWC24 | Contrasted |
| Junkers ZWC24-1MFK23 | Euromaxx ZWC24 | Contrasted |
| Junkers ZWC24-1MFK31 | Euromaxx ZWC24 | Contrasted |
| Junkers ZWC28-1MF2A23 | Euromaxx ZWC28 | Contrasted |
| Junkers ZWC28-1MF2A31 | Euromaxx ZWC28 | Contrasted |
| Junkers ZWC28-1MFA23 | Euromaxx ZWC28 | Contrasted |
| Junkers ZWC28-1MFA31 | Euromaxx ZWC28 | Contrasted |
| Junkers ZWC28-1MFK23 | Euromaxx ZWC28 | Contrasted |
| Junkers ZWC28-1MFK31 | Euromaxx ZWC28 | 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. 87483004490 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 87483004490. 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 87483004490 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 the display is off or blank.
Cause: The PCB does not manage the power supply to the display or the rest of the system.
Check the fuse on the PCB and the mains voltage before replacing it.
- 02
An error code appears on the screen that does not match any actual fault of the components.
Cause: The control chip on the PCB misinterprets a signal and generates an incorrect fault code.
Note the exact code and consult the fault manual before considering that the PCB is defective.
- 03
The boiler ignites, but the fan or the pump do not start even though they are in good condition.
Cause: The PCB does not send the start command to that specific output.
Bypass that output directly to see if the component starts before blaming the PCB.
- 04
The boiler loses its programming or settings every time there is a power outage.
Cause: A fault in the memory of the PCB does not retain the saved configuration.
Reprogram the parameters and check if they are lost again before replacing the PCB.
Fault codes from Junkers that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F7 | Incorrect flame detection. | The ionization signal is incorrect. This may be due to a dirty or faulty photocell, affecting flame detection. If the boiler does not ignite and shows this error, it could be a problem with the PCB. |
| FA | Fault in the flame detection system. | The ion current remains after a normal disconnection. This may indicate a fault in the flame detection system. If the boiler does not shut down properly, check 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 Junkers 87483004490 PCB.
- Catalogue reference
- 87483004490
- Brand
- Junkers
- Type of part
- PCBs (control boards)
- Units in stock
- 12 units
- 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.
- Silkscreen marking of the chip (reading 1)
- 8 744.581.554
- Silkscreen marking of the chip (reading 2)
- S 744.581.564 / RZ 14 16 18.200
- Identify your PCB by the exact boiler model; without a confirmed reference, compatibility is based solely on the model.
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Junkers ZWC24-1MF2A31 manual (PDF)Document © Junkers, provided as a technical reference.
Frequently asked questions about the PCB 87483004490
Does this PCB work for my Junkers ZWC24-1MFA23?
Does it also work for a Junkers ZWC28-1MFK31?
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