Honeywell W4115B-1457 PCB for Saunier Duval Thelia 30E · 45.036.005-001
Application for the exact variant pending confirmation. Boiler control board. Its relationship with the Honeywell W4115B series is pending confirmation, including the functions of gas valve control, flame detection, heating, and domestic hot water priority.
- Type of part
- PCBs (control boards)
- Status
- Refurbished
- internal SKU
- PLC072
- 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 Thelia 30E | 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 designation W4115B-1457 (it is also written as W4115B 1457) and the circuit code 45.036.005-001.
- Compare the other marked ones: 540283 0286 and 9903 V. Check that the ending is 1457, without "(U)", and not another one like 1192B.
- To confirm: for the W4115B-1457 the identifier 45.006.405-001. If the one on your PCB is different, compare it with 45.036.005-001 from ours.
- Please check the specifications plate of your boiler, which is a Thelia 30E (also written as 30 E). The Thelia 23 E has a different plate (05712800).
- if they match, call us at 911 17 77 77 with your boiler model and we will let you know if we have it.
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 does not ignite, or it turns off during operation, with the warning F.28 or F.29.
Cause: Ignition or flame failure, often due to gas, the electrode, or the PCB.
Have a technician check it. Do not attempt to touch the gas valve.
- 02
The boiler shows the warning F.27: it detects flame with the burner off.
Cause: Flame detection fault.
It is a security fault. Have a technician check it immediately.
- 03
The boiler displays the warning F.00: fault in the flow sensor.
Cause: Faulty supply sensor, either with a loose connector or damaged wiring.
It could just be a loose connector. Have a technician check it.
Honeywell fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| F.00 | Fault of the supply temperature sensor (loose connector, wiring or sensor). | It could just be a loose connector. Have a technician check it. It points to the flow sensor, which reads the PCB. |
| F.01 | Fault in the return temperature sensor. | Have a technician check it. Point to the return sensor, which reads the PCB. |
| F.27 | Flame detected with the burner off. | It is a security fault. Have a technician check it immediately. It points to the PCB or the flame sensor. |
| F.28 | Ignition fault: the flame does not form. | Have a technician check it. Focus on the ignition, the electrode, or the PCB. The sources mainly cite condensing models. |
| F.29 | Flame loss during operation. | Have a technician check it. Focus on the ignition, the electrode, or the PCB. The sources mainly cite condensing models. |
| F.62 | Fault in the gas valve or in the flame signal. | Have a technician check it. Point to the gas valve or the PCB, depending on the source. |
| F.63 | Fault in the electronic memory. | Have a technician check it. Point to 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.
Technical sheet: Honeywell PCB
- Uniclima internal SKU
- PLC072
- 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.
- Silkscreen fuses
- F3 FUSE 315mAT; F2 FUSE 125mAT
- Silkscreen fuse F1
- FUSE 4AF
- Inventory — Relays
- 10 A
- Inventory — PCB relays
- K1, K2, K4
- Inventory — Screen-printed connections
- VG, P, 3VIE, PV, HO, MD, TA, SC, DK, SS
- Inventory — Additional screen-printed connections
- LF, TF, DRK, SS
- Inventory — Printed circuit boards
- TEST1, IC1, IC2, IC3, IC4
- Inventory — Model/family partially contrasted
- Honeywell W4115B, variant 1457 as W4115B 1457
- Inventory — Application indicated in inventory
- Saunier Duval THELIA 30E
- Honeywell W4115B series data · To be confirmed — Lockout after flame loss
- To confirm: No more than 1 second · (with the same text) · series W4115B
- Honeywell W4115B series data · To be confirmed — Application
- Gas domestic atmospheric burners with direct ignition · series W4115B
- Honeywell W4115B series data · To be confirmed — Circuits it controls
- To confirm: Heating and hot water, with priority on hot water · (with the same text) · series W4115B
- Honeywell W4115B series data · To be confirmed — Used together
- Gas valve and flame sensor · (with the same text) · series W4115B
- Identification — Marked designation
- W4115B-1457
- Identification — Marked code
- 540283 0286; 9903 V
- Technical sheet: Screen-printed fuses
- F3 FUSE 315mAT; F2 FUSE 125mAT
- Fusible serigrafiado F1
- FUSE 4AF
- Inventory data — Relays
- 10 A
- Inventory data — PCB relays
- K1, K2, K4
- Inventory data — Screen-printed connections
- VG, P, 3VIE, PV, HO, MD, TA, SC, DK, SS
- Inventory data — Additional screen-printed connections
- LF, TF, DRK, SS
- Inventory data — Printed circuit boards
- TEST1, IC1, IC2, IC3, IC4
- Inventory data — Model/family partially verified
- Honeywell W4115B, variant 1457 as W4115B 1457
- Inventory data — Application indicated in inventory
- Saunier Duval THELIA 30E
- Additional markings
- K1, K2, and K4 relay board; relay ratings recorded 10 A (voltage not indicated). Fuses according to positions: F1 4 A F; F2 125 mA T; F3 315 mA T. Connections: VG, P, 3VIE, PV, HO, MD, TA, SC, DK, SS, LF, TF, DRK. Marked TEST1, IC1–IC4, T1/T2/F4. Codes: 540283 0286; 9903 V.
- Pending applications to verify
- Saunier Duval THELIA 30E — cited compatibility; pending verification with specific variant. Consultation 24/10/2026 · 1 supplier; pending confirmation: Thelia 30 E; Thelia Twin 28; Thelia Twin 28 e. The supplier links these models to "Saunier Duval PCB (W4115B)." This does not independently verify compatibility of the listed variant; cross-check OEM, revision, and market with the parts list.
Before purchasing
- Not compatible or excluded: Saunier Duval Thelia 23 E — it has a different PCB: 05712800 (51273 / 51255 / 57050-69)
- Do not confuse: 45.006.405-001 — Identifier that corresponds to the W4115B-1457 — It is different from the 45.036.005-001 of this PCB: compare it with yours.
- Do not confuse: W4115B 1457 — Modification «» of the same series, item W4115B1457U — they do not explain it; ours is marked W4115B-1457, without
- Do not confuse: W4115B 1192B — Honeywell W4115B control board from another variant, second-hand — Ends in 1192B, not in 1457.
- Do not confuse: 05712800 — Saunier Duval PCB for Thelia 23 E (also 51273, 51255, and 57050-69) — It is another PCB, from another boiler.
- for the W4115B-1457 the identifier 45.006.405-001, different from 45.036.005-001 of this unit: compare it with your PCB. The references 56076 and 05607600 are from and do not mention the W4115B.
- Identity of the W4115B 1457; Discrepancies: item W4115B1457 or W4115B1457B; identifier 45.006.405-001 versus 45.036.005-001 (which is sent). Thelia 30E: .
- Pending registered applications to confirm by model, variant, or programming: Saunier Duval Thelia 30E.
Frequently asked questions about the PCB (control board)
How do I identify this PCB?
Look for the designation W4115B-1457 in the circuit: it is from Honeywell, series W4115B, modification 1457. Our unit also has the circuit code 45.036.005-001 and the markings 540283 0286 and 9903 V; these two are not explained. It is also written as W4115B 1457 or W4115B1457.
Is it compatible with my Saunier Duval Thelia 30E?
The compatibility of this variant is pending confirmation. Registered: for the Thelia 30E. Outside, it connects the W4115B-1457 with a Saunier Duval boiler PCB, but not confirmed: the Thelia 30E with this PCB. If your boiler is different, compare the codes or send us a photo of the label from Contact.
Is it compatible with another Saunier Duval boiler, like the Thelia 23 E?
The compatibility of this variant is pending confirmation. We have not registered it. The Thelia 23 E uses a different PCB from Saunier Duval, the 05712800 (also 51273, 51255, and 57050-69). To check another model, compare the codes on your PCB or call 911 17 77 77 with the model of your boiler.
What PCB do they provide for the Thelia 30 E?
the reference Saunier Duval 56076 for the PCB of the Thelia 30 E and another one is 05607600. Neither mentions the W4115B-1457 nor the 45.036.005-001, so it is not stated that they are the same PCB. Registered confirmation: the W4115B-1457 for that boiler; if yours has a different code, compare it.
What is the difference between the W4115B-1457 and other W4115B?
W4115B is the family of control boards from Honeywell, and the following number indicates the modification. The technical sheet in Russian lists modifications from 1085 to 1630, some with «» (W4115B1457U), and the second-hand option is W4115B 1192B. For the 1457, the item W4115B1457 and two others W4115B1457B. Do not consider them interchangeable: compare the complete suffix.
What is the purpose of a W4115B PCB?
The compatibility of this variant is pending confirmation. According to the technical sheet of the W4115B series, it is a control board for atmospheric gas burners with direct ignition. It is used with a gas valve and a flame sensor, controlling heating and domestic hot water with priority on the latter, and it blocks in no more than 1 second if the flame goes out. These are data from the series, to be confirmed for the 1457.
Can I install it myself?
We recommend that a qualified technician install it, as it is used with a gas valve and a flame sensor. Before replacing it, check the three printed fuses on the PCB: F1 4AF, F2 125mAT, and F3 315mAT.
How to identify this PCB?
Compare the silkscreen, the distribution of the connectors, and the exact variant of the circuit with the photographs.
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Honeywell W4115B-1457 PCB for Saunier Duval Thelia 30E · 45.036.005-001