Honeywell PCB 45007556-002 · REV C for Junkers ZW 24 AE23
Pending confirmation for the exact variant application. It is the PCB of the boiler (unit label: "PCB", code 45007556-002).
- Type of part
- PCBs (control boards)
- Status
- Refurbished
- internal SKU
- PLC216
- Warranty
- 1 year
VAT included Stock · 1 unit
Honeywell compatible boilers
PCB. 0 verified compatibilities. There are another 1 models that we are still checking.
Models pending verification
These models are associated with this reference, but we have not finished verifying them yet, so we do not consider them compatibleIf your boiler is one of them, send us a photo of the part you are going to replace and we will verify it before you purchase.
| Honeywell Junkers ZW 24 AE23 | Honeywell | Unconfirmed |
|---|
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 it is the part for your boiler
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Look for the code 45007556-002 and the revision REV C on the PCB.
- Compare the other marked ones: 6926-137, 7648-009, 7649-010, and 0532.
- Do not rely solely on the prefix 45007556: another suffix, such as -004 or -005, is a different code and we do not know if it is interchangeable.
- Check the specification plate of your boiler to confirm that the model is ZW 24 AE23.
- if they match, call us at 911 17 77 77 with the model of your boiler. Any questions? Send us a photo of the label of your part and the data plate of the boiler from Contact.
Symptoms that require diagnosis on the PCB
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 shuts down or locks out with fault code EA.
Cause: No flame detected: lack of gas, dirty ignition electrode, or poor ionization.
Press the reset button once. If it repeats, have a technician check the gas, the electrode, and its cable.
Honeywell fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| EA | There is no ionization current: the boiler does not detect the flame and shuts down or locks out. | Press reset once. If it repeats, have a technician check the gas, the ignition electrode, and the ionization cable. If all that is fine, point to the PCB. |
| F0 | Internal fault of the PCB or its connections. | Check that the contacts on the PCB are properly connected. If the fault code persists, the PCB is the suspected part: have it checked by a technician. |
| FA | It continues to detect flame after closing the gas. | Have a technician check the wiring of the gas valve and the electrode. If the wiring is fine, it points to the PCB. |
| A7 | The NTC sensor for domestic hot water is faulty. | Have a technician check the sensor and its connection to the PCB. The PCB is suspected if the sensor is functioning properly. |
| E2 | The heating flow NTC sensor is faulty. | Have a technician check the heating sensor and its cable. The PCB is suspected if the sensor is fine. |
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.
Technical sheet: Honeywell PCB
- Uniclima internal SKU
- PLC216
- Brand
- Honeywell
- 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
Part data and available documentation
Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.
- Inventory — Application indicated in inventory
- ZW 24 AE23
- Identification — Marked code
- 45007556-002
- Identification — Marked code
- REV C
- Identification — Marked code
- 94V-0
- Identification — Marked code
- 6926-137;7648-009;7649-010
- Identification — Marked code
- 0532
- Inventory data — Application indicated in inventory
- ZW 24 AE23
- Pending applications to verify
- ZW 24 AE23 — compatibility noted; pending confirmation by variant.
Before purchasing
- Do not confuse: 8708300244 — Junkers PCB for the ZW24AE23, and (also written as 87083002440; the 8708300210 is listed as equivalent or replaced by it) — It is a different Junkers code. No technical sheet mentions the 45007556-002: we cannot say that it is the same PCB.
- Do not confuse: 45007556-004 — Honeywell PCB REV B for a Junker ZW24 AE23 — Different suffix and another revision (REV B, not REV C). Only one used, which does not state that it is interchangeable with the -002.
- Do not confuse: 45007556-005 — Honeywell PCB REV B: the technical sheet refers to the Junkers Ceraclass PCB, which is for a Junkers boiler and is offered as "PCB-Board" — Another suffix (-005, not -002). No technical sheet specifies exactly which device it is for or that it is equivalent to the -002.
- They are all marked as read on the part itself. Without any additional external confirmation, they link to a catalog reference from Junkers; for the ZW24AE23, another reference, 8708300244.
- Compatibility with the ZW 24 AE23 registered. Without additional external confirmation, the code is named 45007556-002, so the level is 0.
- Pending registered applications to confirm by model, variant, or programming: Junkers ZW 24 AE23.
Frequently asked questions about the PCB (control board)
How do I identify the Honeywell 45007556-002 PCB?
Look for the code 45007556-002 on the PCB and the revision REV C. Also, compare the markings 6926-137, 7648-009, 7649-010, and 0532.
Is it compatible with my Junkers ZW 24 AE23?
The compatibility of this variant is pending confirmation. Registered application: this PCB for the Junkers ZW 24 AE23. They do not confirm this PCB for the ZW 24 AE23: the Ceraclass midi manuals describe the boiler and its control board, but do not identify it by code, and those that provide a PCB for the ZW24AE23 cite another code (Junkers 8708300244), not 45007556-002. Compare the markings on your PCB with those on ours.
What if my boiler is not the ZW 24 AE23?
The compatibility of this variant is pending confirmation. For other models, we do not have confirmation from the workshop nor that this code is associated with them, so we do not consider it valid without verification. Send us a photo of your PCB label and the specifications plate of your boiler from Contact, or call us at 911 17 77 77.
Is the 45007556-002 the same as the 45007556-004 or the -005?
We don't know. They share the prefix 45007556 and the suffix changes; ours is REV C, while a Honeywell 45007556-004 REV B is for a Junkers ZW24 AE23. The technical sheet for the Junkers Ceraclass PCB mentions 45007556-005 REV B and another one for a Junkers boiler. Not confirmed: whether they are interchangeable with the -002.
What do REV C, 6926-137, 7648-009, 7649-010, and 0532 mean?
45007556-002 is the Honeywell code marked on the PCB and REV C is the revision marked. 6926-137, 7648-009, 7649-010, and 0532 are other markings on the PCB. Without additional confirmation, explain what each one indicates, and they do not necessarily correspond to the reference of a kit: use them to compare your PCB with ours.
What is the official reference of Junkers for this PCB?
We haven't found it: Unconfirmed: the 45007556-002 with a Junkers code. For the ZW24AE23, they offer a Junkers PCB with reference 8708300244 or 87083002440, and two relate the 8708300210 to the 8708300244 (: «=»;: the 8708300210 is discontinued and the 8708300244 is sent). None mention our codes, so we cannot say it is the same PCB. It is titled “(Honeywell)” without providing a Honeywell code.
Who should install this PCB?
A qualified technician. It is the PCB of a boiler connected to the electrical network: an unofficial copy of the manual for the Ceraclass midi ZW 24 AE 23 indicates an electrical connection of 230 V, 50 Hz. Bosch Home Comfort warns in its spare parts catalog that only an authorized installer can mount them.
Honeywell PCB 45007556-002 · REV C for Junkers ZW 24 AE23