Ignition Transformer Cointra Edyco ED 21 EI Ref. 8510910
If your boiler attempts to start without being able to ignite the flame, you may need the Cointra Edyco ED 21 EI Ignition Transformer Ref. 8510910. This transformer is responsible for generating the spark necessary to ignite the boiler's burner. When it fails, the boiler may lock out due to lack of ignition. This model is compatible with boilers from the Baxi ranges, such as ECO, LUNA, and MAIN, as well as with Westen models, such as QUASAR and STAR DIGIT, among others. It is advisable to replace it if the boiler does not ignite properly.
VAT included
Consult via WhatsAppCointra boilers compatible with reference 8510910
Ignition transformer with reference 8510910. Nine verified compatibilities: ECO and ECO-3.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Cointra ECO | Baxi | Contrasted |
| Cointra ECO-3 | Baxi | Contrasted |
| Cointra LUNA | Baxi | Contrasted |
| Cointra LUNA-3 | Baxi | Contrasted |
| Cointra MAIN | Baxi | Contrasted |
| Cointra MAIN DIGIT | Baxi | Contrasted |
| Cointra QUASAR | Westen | Contrasted |
| Cointra QUASAR PLUS | Westen | Contrasted |
| Cointra STAR DIGIT | Westen | 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. 8510910 is the part for your boiler
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 8510910. 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 and faults that the ignition transformer 8510910 resolves.
The ignition transformer generates the high voltage for the spark of the electrodes. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler tries to ignite but the burner does not light up.
Cause: The transformer is not generating the spark needed for ignition.
Check if there is a visible spark at the electrode during the ignition attempt before considering the transformer faulty.
- 02
There is no sound or visible spark when the boiler starts.
Cause: The transformer is not working and does not produce the arc snap.
Check that the high voltage cable is properly connected at both ends; a loose connection can cause the same silence as a broken coil.
- 03
The boiler locks out due to ignition failure as soon as it tries to start.
Cause: The control board cuts off the gas immediately due to lack of spark, as a safety measure.
Check the condition of the electrode (clean, without cracks) before replacing the transformer; it is the most common cause of this warning.
- 04
The problem occurs after a humid period or after cleaning the boiler.
Cause: Humidity can affect the transformer insulation, preventing the spark from being generated correctly.
Let the area of the transformer and the electrode dry thoroughly before concluding that the coil is faulty.
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.
Cointra 8510910 ignition transformer datasheet
- Catalogue reference
- 8510910
- Brand
- Cointra
- Type of part
- Transformers
- Units in stock
- 7 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Frequently asked questions about the ignition transformer 8510910
Is this ignition transformer Ref. 8510910 compatible with a Westen Quasar Plus boiler?
What fault does this ignition transformer resolve in a Baxi Eco-3 boiler?
Spare parts related to Cointra Baxi
