PCB for Renova Teknic C23E and F23E Boilers - Silkscreen DRK3-1 C689
The PCB for Renova Teknic C23E and F23E boilers manages the ignition, burner modulation, pump, and safety features of the boiler. When it fails, the boiler may not start, become locked, or exhibit erratic behavior. The user may notice the fault code F.70, which indicates that the coding of the display and the PCB does not match. This board is compatible with models from the Renova Teknic range, among others. A technician must confirm through diagnosis whether replacement is necessary when these malfunction symptoms occur.
- Type of part
- PCBs (control boards)
- Status
- Refurbished
- Catalogue reference
- 984426
- Warranty
- 1 year
Renova boilers compatible with reference 984426
PCB with reference 984426. A proven compatibility: Renova Teknic F23E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Renova Renova Teknic F23E | Renova Teknic | Contrasted |
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 ref. 984426 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 984426. 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 984426
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 at all: neither the pilot light nor the display, it does not respond to anything.
Cause: The PCB cuts off the power supply to the boiler if the fuse blows or there is a failure in the mains input.
Measure the fuse on the PCB with a multimeter and check that the differential switch in the house does not trip when connecting the boiler.
- 02
The thermostat is calling for heat, but the boiler is not starting.
Cause: The PCB receives the demand but does not send the order to the fan or the gas valve.
Do not force, hit, or bridge the component. Request a technical check according to the equipment manual before deciding on its replacement.
- 03
It turns off and on by itself after a few minutes, without a clear pattern.
Cause: A component of the PCB fails with heat and only shows problems after being on for a while.
Note if the cut occurs always after a similar time; that pattern indicates a thermal fault of the PCB.
- 04
Show a fault code that does not match any real fault when checking the components.
Cause: The PCB incorrectly interprets a signal and displays a code that does not reflect the actual status of the installation.
Check the manual to identify which component is associated with that fault code and verify it before considering the PCB as faulty.
Renova fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| F.70 | Invalid appliance code (DSN): the display coding and the PCB do not match. | The installed display board is not the correct one for the model or has not been reparameterized after the change; the unit enters F.70. Check by entering d.93 and adjusting the DSN or try with a compatible/original display. |
| with | No communication with the PCB (display–PCB communication lost). | Internal fault of the display board or its harness/ribbon causes loss of connection with the electronics. Check continuity and voltages to the display; if it persists, test/replace the display board. |
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 Renova 984426 PCB.
- Catalogue reference
- 984426
- Uniclima internal SKU
- PLADYSRTF23
- Brand
- Renova
- Type of part
- PCBs (control boards)
- Units in stock
- 7 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.
- PCB silkscreen
- DRK3-1 C689
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Renova Renova Teknic F23E Manual (PDF) Document © Renova, provided as a technical reference.
Frequently asked questions about the PCB 984426
Is this PCB suitable for a Renova Teknic F23E?
How do I check if this PCB is for my Renova Teknic C23E?
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