Biasi Savio 120M PCB
The Biasi Savio 120M PCB is the component that controls the ignition, the modulation of the burner, the pump, and the safety features of the boiler. If it malfunctions, the boiler may fail to start, become locked, or operate erratically. Users may notice faults such as E50, which indicates an OpenTherm communication anomaly, E89, which signals an internal error, or E99, which indicates that the PCB is not configured. This PCB is compatible with the Savio range, specifically with the model 120M. A technician must confirm through diagnosis whether it needs to be replaced when these symptoms or faults are detected.
- Type of part
- PCBs (control boards)
- Status
- Refurbished
- Catalogue reference
- 2000802038, S1047000
- Warranty
- 1 year
Biasi boilers compatible with reference 2000802038, S1047000
PCB with reference 2000802038, S1047000. A proven compatibility: 120M.
Verified compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Biasi 120M | SAVIO | Verified |
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 reference 2000802038, S1047000 is the part for your boiler.
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 2000802038, S1047000. 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 that require diagnosis on the PCB 2000802038, S1047000
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 there is no response when the ignition command is given.
Cause: If the control electronics are not functioning, no signal is sent to start, so the boiler does not respond.
First, check the main power supply and the accessible fuses: if the PCB does not receive power, the problem is not with the electronics.
- 02
The panel controls do not respond to any presses.
Cause: The microcontroller on the PCB interprets the pulses; if it gets stuck, the panel does not respond even though it seems to be working.
Cut the power for 30 seconds and turn it back on: if the lockout occurs again, the fault is in the PCB.
- 03
The boiler intermittently locks up: sometimes it starts well and other times it does not respond.
Cause: An intermittent fault in the control electronics usually indicates that the PCB is starting to fail.
Keep a record of when the blockage occurs (when cold, when hot, during startup): this pattern helps confirm that it is the PCB and not another component.
Biasi fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| E50 | OpenTherm communication anomaly. | Communication interface fault (OpenTherm) on the PCB or bus loss; verify by disconnecting the remote/OT, checking wiring and voltages at the OT terminals of the PCB; if it persists, the PCB is damaged. |
| E89 | Internal error (typically hardware). | Internal fault of the PCB (micro/memory/regulators) or electrical network out of tolerance; check network quality and voltages 230V/5V/3.3V on the PCB, and if they are correct, replace the PCB. |
| E99 | PCB not configured. | PCB not parameterized or with lost/incorrect configuration after replacement; verify and initialize parameters/model according to the manual (or BCC/ID if applicable); if it does not accept configuration, the PCB is defective. |
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 Biasi PCB 2000802038, S1047000
- Catalogue reference
- 2000802038, S1047000
- Uniclima internal SKU
- PLCSAV120M
- Brand
- Biasi
- Type of part
- PCBs (control boards)
- Units in stock
- 2 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.
- Text printed on the PCB
- IRIS1.0
- Manufacturer of the integrated transformer
- MYRRA
Frequently asked questions about the PCB 2000802038, S1047000
Is MYRRA the manufacturer of the PCB for the Savio 120M?
When should this PCB of the Savio 120M boiler be replaced?
