
Anstoss ZAG 2V Ignition Transformer for Chaffoteaux Ref. 07000065
Ignition transformer for Chaffoteaux gas boilers, with code ZAG 2V (Best-Nr. 07000065) printed on the label. It generates the high voltage that produces the spark at the burner's ignition electrode. It is replaced when the boiler does not ignite or the electrode does not generate a spark with the rest of the circuit functioning correctly. Compatible with Luna Duo Tec MP, Luna HT, Luna3 System HT, Nuvola HT, and Power HT.
VAT included
Consult via WhatsAppChaffoteaux boilers compatible with reference 07000066
Ignition transformer with reference 07000066. Two confirmed compatibilities: Siam 2-23 E CF and Siam 2-23 E FF.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Chaffoteaux Siam 2-23 E CF | Chaffoteaux | Contrasted |
| Chaffoteaux Siam 2-23 E FF | Chaffoteaux | 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. 07000066 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 07000066. 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 07000066 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 does not ignite on the first attempt; it makes several attempts before starting or locking out.
Cause: The transformer does not receive enough current in the first cycle and the unit retries before locking.
Check the fault code on the display: if it indicates a ignition failure on the first attempts, the transformer is the first suspect.
- 02
The buzzing of the ignition attempt can be heard, but no spark is visible at the electrode.
Cause: The transformer tries to generate high voltage, but it does not reach the electrode cleanly, usually due to the high voltage cable.
Check the high voltage cable and its connection to the transformer and the electrode before replacing the part.
- 03
The spark jumps irregularly, sometimes at the tip of the electrode and other times it seems to disappear.
Cause: The electrode has cracked porcelain or a worn tip and diverts part of the current.
Check the ignition electrode, its porcelain, and the gap between the tips before declaring the transformer faulty.
- 04
The boiler locks on the display with a fault code for ignition after several attempts.
Cause: The ground connection of the burner is loose or poorly connected, weakening the spark until the control board locks out for safety.
Check that the cable or the grounding strip of the burner is properly connected before replacing the transformer.
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 07000066
- Catalogue reference
- 07000066
- 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.
- Model
- ZAG 2V
- Code (Best-Nr.)
- 07000065
- Voltage
- 220-240 V
- Frequency
- 50-60 Hz
- Power (Pzu)
- 3 VA
- Maximum temperature
- +85°C
- Standard
- DIN DVGW 93.02f142
- Wiring
- PE N L
- 07000066 is another item from the same ZAG 2V family (variant S3) and is NOT equivalent to this part (variant S2, 07000065); do not confuse them.




