
Chaffoteaux Niagara Delta 30 FF Ignition Transformer Ref. 61002105-20
Ignition transformer for Chaffoteaux boilers from the Niagara, Calydra, Genus HE, and Nectra ranges. It generates the high voltage that produces the spark at the electrode to ignite the burner. Manufactured by ITW Ispracontrols, type BW12026-01, for 220-240V and 3VA. It is replaced when the boiler does not ignite or the electrode does not spark.
VAT included
Consult via WhatsAppChaffoteaux boilers compatible with reference 61002105-20
Ignition transformer with reference 61002105-20. 31 verified compatibilities: Calydra 23 CF/FF (N/P) and Calydra 28 CF/FF (N/P).
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Chaffoteaux Calydra 23 CF/FF (N/P) | Calydra | Contrasted |
| Chaffoteaux Calydra 28 CF/FF (N/P) | Calydra | Contrasted |
| Chaffoteaux Calydra VMC 23 | Calydra | Contrasted |
| Chaffoteaux Calydra Delta 24 CF/FF/VMC | Calydra | Contrasted |
| Chaffoteaux Calydra Delta 28 CF/FF | Calydra | Contrasted |
| Chaffoteaux Calydra Green 24 | Calydra | Contrasted |
| Chaffoteaux Calydra Green 30 | Calydra | Contrasted |
| Chaffoteaux Nectra 1.23 | Nectra | Contrasted |
| Chaffoteaux Nectra 2.23 | Nectra | Contrasted |
| Chaffoteaux Nectra 2.28 | Nectra | Contrasted |
| Chaffoteaux Elexia Comfort 24 CF/FF | Elexia | Contrasted |
| Chaffoteaux Elexia II 2.23 CF/FF | Elexia | Contrasted |
| Chaffoteaux Hyxia 23 VMC/FF | Hyxia | Contrasted |
| Chaffoteaux Hyxia 28 CF/FF | Hyxia | Contrasted |
| Chaffoteaux Centora 2.24 | Centora | Contrasted |
| Chaffoteaux Centora 2.28 | Centora | Contrasted |
| Chaffoteaux Centora 3.24 | Centora | Contrasted |
| Chaffoteaux Centora Green 2.24 | Centora | Contrasted |
| Chaffoteaux Mira Comfort 24/30 | Look | Contrasted |
| Chaffoteaux Mira Green 24/30/35 | Look | Contrasted |
| Chaffoteaux Niagara C | Niagara | Contrasted |
| Chaffoteaux Niagara Delta | Niagara | Contrasted |
| Chaffoteaux Niagara Green 24 | Niagara | Contrasted |
| Chaffoteaux Aludra Delta 24 CF/FF | Aludra Delta | Contrasted |
| Chaffoteaux Aludra Delta 28 FF | Aludra Delta | Contrasted |
| Chaffoteaux Celtic 1.23 | Celtic | Contrasted |
| Chaffoteaux Celtic 2.23 | Celtic | Contrasted |
| Chaffoteaux Celtic Turbo 2.20 | Celtic | Contrasted |
| Chaffoteaux Talia Green System | Talia Green | Contrasted |
| Chaffoteaux Pigma Green 25/30/35 | Pigma Green | Contrasted |
| Chaffoteaux Urbia Green 25/30/35 | Urbia Green | 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. 61002105-20 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 61002105-20. 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 61002105-20 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 several times in a row but fails to light the burner.
Cause: The transformer does not deliver the high voltage necessary for the electrode to produce the spark.
Check that the transformer connector is properly fitted and free of oxidation before replacing it.
- 02
There is a smell of gas when attempting to ignite, but no spark is heard or seen.
Cause: Gas continues to reach the burner through the gas valve even though the transformer does not generate the spark that ignites it.
Shut off the gas and ventilate the area; do not attempt to ignite multiple times in a row without confirmed spark.
- 03
The display shows a lock due to ignition failure after several attempts.
Cause: The control unit counts the attempts without flame and locks the boiler for safety when it does not detect ionization.
Note if the lockout occurs consistently quickly in each attempt; this points more to the spark than to an intermittent gas failure.
- 04
The spark can be seen or heard, but very weak, as if it lacks the strength to jump cleanly.
Cause: A damaged winding in the transformer reduces the output voltage even though it still produces some spark.
Check the distance between the electrode and the ground before changing the transformer: an incorrect gap also weakens the spark.
Fault codes Chaffoteaux that this part resolves
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 70-80 | Safety function due to ignition failure (flame not detected). | The TIG 35 HP ignition transformer does not deliver high voltage to the electrode and there is no spark, causing the boiler to enter ignition lockout. Check that the primary receives ~230 V during the attempt and that there is no spark/HT output; if there is voltage in the primary and no spark, the transformer 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.
Chaffoteaux Ignition Transformer Datasheet 61002105-20
- Catalogue reference
- 61002105-20
- Brand
- Chaffoteaux
- Type of part
- Transformers
- Units in stock
- 5 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Data read on the part and in the manufacturer's documentation
What we have not been able to verify does not appear here.
- Manufacturer
- ITW Ispracontrols
- Manufacturer code
- BW12026-01
- Voltage
- 220-240V
- Power
- 3VA
- Operating temperature
- T.90°C
- Date code
- 3708S
- Batch code
- 18433


