Cointra PCB E20 I 48219 IN
If your boiler does not start, locks up, or exhibits erratic behavior, a technical diagnosis must confirm if you need the Cointra E20 I 48219 IN PCB. This part is responsible for controlling the ignition, burner modulation, pump, and safety features of the boiler. Its failure can cause the boiler to malfunction. It is compatible with several Cointra models, such as the E20 I, E20 L, M20 I, and M20 L, among others. A technician must confirm through diagnosis whether it needs to be replaced when these symptoms occur to restore the proper functioning of your boiler.
Cointra boilers compatible with reference 48219-IN
PCB with reference 48219-IN. Four confirmed compatibilities: E20 I and E20 L.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Cointra E20 I | Cointra | Contrasted |
| Cointra E20 L | Cointra | Contrasted |
| Cointra M20 I | Cointra | Contrasted |
| Cointra M20 L | Cointra | 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. 48219-IN 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 48219-IN. 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 48219-IN
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 start: nothing works, neither the fan nor the pump, and the display does not turn on.
Cause: If the PCB does not receive or deliver the 24V power supply, no component will start even if the boiler has power.
Before changing the PCB, measure with a multimeter that the mains voltage is present and that the fuse or circuit breaker has not tripped.
- 02
An error code appears on the display that is not related to other components.
Cause: The electronics control their own safety features and display a fault code when they detect a problem in their control cycle.
Note the exact code and check its meaning in the manual: some 'PCB' codes may refer to a poorly connected external sensor.
- 03
The ignition intermittently fails: sometimes it starts well and other times it shuts down or modulates poorly.
Cause: An intermittent fault on the PCB may be due to a cold solder joint or a microcut that responds unstably with temperature.
Check the connectors and the wiring that reaches the PCB: a loose or corroded terminal can cause the same symptom without the PCB being damaged.
- 04
The boiler starts but does not modulate: it stays at maximum power or performs short on and off cycles.
Cause: The PCB regulates the burner power according to demand; if modulation fails, the burner operates in an all-or-nothing manner.
Check that the temperature sensor and its wiring are properly connected, as a loose sensor can produce the same effect.
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 PCB Cointra 48219-IN
- Catalogue reference
- 48219-IN
- Uniclima internal SKU
- PLCCE20I
- Brand
- Cointra
- 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.
- Voltage (transformer, second label)
- 24V
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Cointra E20 L Manual (PDF)Document © Cointra, provided as a technical reference.
Frequently asked questions about the PCB 48219-IN
Is this PCB suitable for the Cointra M20 I as well as the M20 L?
What fault in the Cointra E20 I does this PCB resolve?
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