Honeywell PCB 45.006.405-001 (W4115B-1457) for Saunier Duval Master Twin 85 E
Application for the exact variant pending confirmation. PCB that has four relays (K1 to K4) and one transformer (TRF1) silk-screened.
- Type of part
- PCBs (control boards)
- Status
- Refurbished
- internal SKU
- PLC082
- 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 Saunier Duval Master Twin 85 E (85E) | 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 circuit code 45.006.405-001 and the designation marked W4115B-1457 or W4115B1457B on the PCB.
- Compare the silkscreen: relays K1 to K4, transformer TRF1, and fuses FUSE4AF, FUSE315mAT, and FUSE125mAT.
- One of our units also has 3893460 0077, COMP-SIDE, and COMP-301E: compare them if your PCB has them.
- Do not confuse it with other PCBs W4115B, such as the W 4115 B 1218B (Honeywell) or the 45005672-001 (W4115B 1515B, Saunier Duval): their codes are different.
- they match, call us at 911 17 77 77 with your boiler model and we will reserve it for you. Any questions? Send us a photo of your spare part label and the boiler's specification plate from the Contact section.
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 stops and displays F13 on the screen.
Cause: Internal fault of the main PCB.
Check the connections of the PCB, the product code, and perform a reset. If it reappears, have a technician check it.
- 02
F12 appears on the boiler screen.
Cause: Problem in the eBUS line.
Check the eBUS line. If the fault code persists, have a technician review it.
Honeywell fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| F13 | Fault in the main PCB. | Check the connections of the PCB, the product code, and perform a reset. If the code appears again, it points to the main board and it should be checked by a technician. |
| F12 | Voltage problem in the eBUS line. | Check the eBUS line. If the fault code persists, have a technician review it. |
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
- PLC082
- 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.
- Fuse markings
- FUSE315mAT;FUSE125mAT;FUSE4AF
- Inventory — Fuse
- 1.25 A T
- Inventory — Identified subcomponent
- transformer TRF1
- Inventory — Identified subcomponents
- relays K1, K2, K3, and K4
- Inventory — PCB Screen Printing
- COMP-301E
- Inventory — Application indicated in inventory
- MASTER TWIN 85E
- Identification — Marked designation
- W4115B1457B
- Identification — Marked code
- W4115B1457B
- Identification — Marked code
- 3893460 0077
- Identification — Marked code
- COMP-SIDE
- Marcados de fusibles
- FUSE315mAT;FUSE125mAT;FUSE4AF
- Inventory data — Fuse
- 1.25 A T
- Inventory data — Identified subcomponent
- transformer TRF1
- Inventory data — Identified subcomponents
- relays K1, K2, K3, and K4
- Inventory data — PCB screen printing
- COMP-301E
- Inventory data — Application indicated in inventory
- MASTER TWIN 85E
- Identification and equivalences
- W4115B1457B and 45.006.405-001; offer W4115B-1457/45.006.405-001. Complete similar PCB; suffix B and revision not reconciled.
- Additional markings
- Transformer TRF1; relays K1–K4. PCB: COMP-301E; solder side code 45.006.405-001; marked COMP-SIDE. Marked code 3893460 0077. General fuse readings: 4 A F and 1.25 A T; additional screen prints FUSE315mAT, FUSE125mAT and FUSE4AF.
- Pending applications to verify
- MASTER TWIN 85E — compatibility mentioned; pending confirmation with the specific variant.
Before purchasing
- Do not confuse: W 4115 B 1218B — Honeywell PCB from the same series W 4115 B, another list W4115B1218 for Unical - Saunier Duval — Different designation (1218B): without additional confirmation, it is not linked to W4115B-1457 or to this part.
- Do not confuse: 45005672-001 — PCB Saunier Duval "W4115B 1515B", — Different code and designation; the technical sheet does not specify which boiler it belongs to and without additional confirmation, it links it to 45.006.405-001.
- Do not confuse: 05602200 — Printed circuit board Saunier Duval (Thelia Twin) assigned to the Master Twin L 85 E — Another code; they mention the Master Twin L 85 E; none state if it is the same boiler as the 85 E, and none link it to 45.006.405-001 or W4115B.
- They are marked as read on the piece itself or data. None of them that we have been able to read links them to a Saunier Duval catalog reference.
- Compatibility with the registered Master Twin 85 E. None of what we have been able to read links the code 45.006.405-001 with a boiler yet.
- Pending registered applications to confirm by model, variant, or programming: Saunier Duval Master Twin 85 E (85E).
Frequently asked questions about the PCB (control board)
What is the Honeywell 45.006.405-001 PCB and how do I identify it?
It is a Honeywell PCB with circuit code 45.006.405-001, which is also printed on the solder side of one of our units. One unit has the designation W4115B-1457 and the other W4115B1457B. Also compare the silkscreen: relays K1 to K4, transformer TRF1, and fuses FUSE4AF, FUSE315mAT, and FUSE125mAT.
Is it compatible with my Saunier Duval Master Twin 85 E?
The compatibility of this variant is pending confirmation. Registered application: this PCB for the Master Twin 85 E, with both units. The parts lists we have been able to read are from the Master Twin "L 85 E"; in the text we have read from them, the code 45.006.405-001 does not appear, and the list of ("nomenclature 484") was only partially read. One category mentions "master twin 85," but we could only read it partially and it does not provide any part code; we cannot confirm if it is the same boiler as the 85 E. We also cannot provide you with a catalog reference from Saunier Duval: compare the markings on the part with those on your PCB.
What if my boiler is not the Master Twin 85 E?
The compatibility of this variant is pending confirmation. For other boilers, we do not have confirmation from the workshop nor do we associate this code 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.
What is the difference between W4115B-1457 and W4115B1457B?
The compatibility of this variant is pending confirmation. These are the designations marked on each of our units; our inventory also lists the second one as W4115B 1457B. Both carry the circuit code 45.006.405-001 and are registered for the Master Twin 85 E. No page we have read explains the final letter B, so we cannot say what changes. 3893460 0077, COMP-SIDE, and COMP-301E are only present in the unit W4115B1457B; we do not have that data for the W4115B-1457.
What fuses and components does it have?
The silkscreen marks FUSE4AF, FUSE315mAT, and FUSE125mAT. One unit has a fuse F3 of 3.15 A/T and another of 1.5 A, while the other has one of 4 A F and another of 1.25 A T. It has relays K1 to K4 and transformer TRF1. The W4115B-1457 also includes the integrated circuits LM324N and M27C512 (ST), but we do not have that information for the W4115B1457B. Read the value written on the fuse of your board before replacing it.
Does it confuse with other Honeywell W4115B PCBs or with the circuit 05602200?
There are similar designations that are not confirmed: for this PCB: W 4115 B 1218B, another one W4115B1218 (for Unical - Saunier Duval) and Saunier Duval sells 45005672-001 (W4115B 1515B). The printed circuit board 05602200 is assigned to the Master Twin "L 85 E"; none indicate if it is the same boiler as the 85 E. We do not consider them equivalent: compare codes or contact us with a photo.
Who should install this PCB?
A qualified technician. It is a PCB with relays and a transformer, connected to the boiler. Before touching anything, the power supply to the boiler must be cut off.
How to identify this PCB?
Compare the silkscreen, the distribution of the connectors, and the exact variant of the circuit with the photographs.
Spare parts related to Honeywell
Honeywell PCB 45.006.405-001 (W4115B-1457) for Saunier Duval Master Twin 85 E