Junkers/Bosch PCB 8 748 300 373 for ZWC24-1MFA23
Refurbished Junkers Junkers

Junkers/Bosch PCB 8 748 300 373 for ZWC24-1MFA23

Price pending confirmation; please consult us before booking. It is the control PCB of the boiler.

Type of part
Junkers
Status
Refurbished
internal SKU
PLC248
Warranty
1 year
VAT included OUT OF STOCK
Compatibility

Compatible Junkers boilers

Junkers. A proven compatibility: Junkers ZWC24-1MFA23 (ZWC 24 1MFA 23). There are 3 other models that we are still verifying.

Proven compatibility

Boiler modelFamilyVerification
Junkers ZWC24-1MFA23 (ZWC 24 1MFA 23)JunkersContrasted

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.

Junkers ZWC 24 1MFA-1MFKJunkersUnconfirmed
Junkers ZWC 28-1 MFA/MFKJunkersUnconfirmed
Junkers Euromaxx ZWC-MF (family)JunkersUnconfirmed

Can't see your model or have questions? The printed reference takes precedence. How to check it ·

Guide

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.

  1. Look for the 8 748 300 printed on the label and the 373 handwritten. In the bag of our units, you can read 8748300373 or 80748300373.
  2. Compare the circuits and the white module with those of references: NEC JAPAN 026-BF10.66 or 8 744 501 240, and module 8 747 201 251.
  3. Do not confuse it with 8 748 300 506 or 8748300371: change the suffix. If yours is 8748300449 or 87483004490, compare the marked ones with those in this technical sheet.
  4. If they match, call us at 911 17 77 77 with the model of your boiler.
Technical data

Technical sheet: Junkers

Uniclima internal SKU
PLC248
Brand
Junkers
Type of part
Junkers
Units in stock
0 units
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.

Stock code
8748300373
PCB marking
8 748 300; handwritten suffix 373
NEC JAPAN integrated circuit
026-BF10.66; 8 744 501 246; 0130PY002
White subcomponent marking
JUNKERS; BOSCH Group; 8 747 201 251; E 3746/6
Fuse
T3.15A
Power strip
terminals 1, 2, 4, 7, 8, 9
Green strip markings
L, N, Ns, Ls and LR
Identification — Stock code
8748300373
Identification — PCB Marking
8 748 300; handwritten suffix 373
Identification — NEC JAPAN integrated circuit
026-BF10.66; 8 744 501 246; 0130PY002
Identification — Marking of the white subcomponent
JUNKERS; BOSCH Group; 8 747 201 251; E 3746/6
Technical sheet: Fuse
T3.15A
Technical sheet: Regleta
terminals 1, 2, 4, 7, 8, 9
Marcajes de la regleta verde
L, N, Ns, Ls and LR
Before purchasing
  • To confirm: Junkers ZWC 24 1MFA-1MFK — with the 373: catalog (449 ex 373). from (373 or 449) does not add up: unidentified seller
  • To confirm: Junkers ZWC 28-1 MFA/MFK — : catalog (449 ex 373 for ZWC 24/28-1 MFA/MFK)
  • To confirm: Junkers Euromaxx ZWC-MF (family) — With the 373: (replacement 87483004490) and catalog (ZWC 24/28-1 MFA/MFK, see previous rows): to confirm. With the 87483004490, additionally, and.
  • Not compatible or excluded: Junkers ZW20AM / ZW20-1AME — they provide another PCB: 8748300371
  • Do not confuse: 8 748 300 506 — PCB from the official Junkers list 6720611197 for ZWC24/28-1MFA; the 2800 variant uses 8 748 300 533 — Same prefix, different suffix. In the text read from the list, 373 does not appear: compare the code of your PCB.
  • Do not confuse: 8748300371 — PCB compatible with ZW20AM and ZW20-1AME — Ends in 371, not in 373: it is a different PCB.
  • Do not confuse: 87483005060 — PCB that is also provided as a substitute for 8748300373; it is for ZWSE4 and ZWC24-1MF2A — It is a different code from 87483004490 and only connects to 373.
  • search with both forms: 8748300449 and 87483004490.
  • Official lists: 506 (6720611197, MFA family); 449 (J 1455, ZWC 24-1 and ZWC 28-1 MFK); 454 (copy 02.10 of 6720611196, MFK/MF2K). Another copy of 6720611196 gives 506 for MFK/MF2K. They cite 449 as a spare part for 373; it provides two substitutes (87483004490 and 87483005060).
Frequently Asked Questions

Frequently asked questions: junkers

How do I identify the Junkers 8 748 300 373 PCB?
The code is on the circuit: 8 748 300 printed and the suffix 373 handwritten. The bag lists it as 8748300373 or 80748300373. Also compare the circuits NEC JAPAN 026-BF10.66 (with 8 744 501 246) or 8 744 501 240 (with BF 10.66 FD.188) and the white module 8 747 201 251 (E 3746/6 or E 3745/6).
Is it compatible with my Junkers ZWC24-1MFA23?
Yes: Confirmation registered: this PCB for the ZWC24-1MFA23 (ZWC 24 1MFA 23). Not confirmed: the 8748300373 with that exact boiler. Yes, the ZWC24-1MFA23 is listed for the 87483004490 (which is indicated as a spare part for the 373), and, without an identified seller, it lists the 449 or the 373 for the ZWC 24 1MFA-1MFK.
Is the 8748300373 the same PCB as the 8748300449 or the 87483004490?
they provide 8748300449 as a spare part for 373: (87483004490), («8748300449 EX 8748300373») and the catalog («ex J8748300373»). However, the official list 6720611197 gives 8 748 300 506 for the MFA family and J 1455 gives 449 for the ZWC 24-1 and ZWC 28-1 MFK. without additional confirmation, show the marked ones: compare them with your PCB.
What is the difference between 8 748 300 373 and 8 748 300 506?
They share the prefix 8 748 300 and change the suffix. The official Junkers list 6720611197 gives 8 748 300 506 as the PCB for the ZWC24/28-1MFA and 8 748 300 533 for the 2800 variant. In the text read from that list, 373 does not appear. It also lists 87483005060 as a substitute for 373. Registered confirmation: 373 for the ZWC24-1MFA23: if your PCB has a different code, compare it before ordering.
What other boilers use this PCB or its spare part?
Registered confirmation: the ZWC24-1MFA23. With the 373, without an identified seller, name the ZWC 24 1MFA-1MFK (to be confirmed) and the catalog the ZWC 24/28-1 MFA/MFK, for the 8748300449 (to be confirmed: ). For the spare part 87483004490, also list ZWC24-1MFA31, ZWC24-1MFK23, ZWC24-1MFK31 and the four equivalent ZWC28. Link them to the spare part, not to the 373: to be confirmed.
Who should install it and what should I check beforehand?
It's better to have a qualified technician, especially if you don't have experience: the PCB works with electrical power. Before replacing it, check the fuse: one of our units uses T3.15A and the other has the printing T1.25A next to a fuse holder.
Entrega calculada por destino Delivery time shown at checkout
1-year warranty reviewed and tested
14-day return uninstalled parts
Technical support we verify your model
Junkers/Bosch PCB 8 748 300 373 for ZWC24-1MFA23