Ignition Connector Anstoss VZ 2/10 HDC 600 - Cointra SPC 21 EI - Ref. 9158878
Ignition connector/block manufactured by Anstoss, model VZ 2/10 HDC 600, mounted on the Honeywell VK4105M gas valve. It is used in Cointra ED 21 EI, SP 21 EI, SP 27 EI, SPA 27 EI, SPC 21 EI, and SPI 21 EI boilers. It operates at 220-240 V, 1.5 VA, and 50-60 Hz. It is replaced when the boiler does not ignite due to a fault in this block.
VAT included
Consult via WhatsAppCointra boilers compatible with reference 9158878
Gas valve with reference 9158878. Six confirmed compatibilities: 21 EI and 21 EI.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Cointra 21 EI | ED | Contrasted |
| Cointra 21 EI | SP | Contrasted |
| Cointra 27 EI | SP | Contrasted |
| Cointra 27 EI | SPA | Contrasted |
| Cointra 21 EI | SPC | Contrasted |
| Cointra 21 EI | SPI | 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. 9158878 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 9158878. 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 gas valve 9158878 resolves.
The gas valve regulates and modulates the gas flow to the burner. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler does not ignite and the click of the gas valve is not heard when starting.
Cause: The ignition block is not receiving power to activate the gas valve coil.
Measure with a multimeter if power is reaching the connector during the start attempt before replacing it.
- 02
The ignition intermittently fails: sometimes it lights and sometimes it doesn't.
Cause: There is a poor connection in the connector, which may loosen or lose continuity due to the vibrations of the boiler.
Check that the connector is properly seated in its housing and that the terminals are not loose or corroded.
- 03
A flame failure warning appears on the screen just when trying to start.
Cause: The block does not activate the gas valve within the time expected by the control board, so the burner does not ignite.
Reset the boiler and check if the warning appears at the same point in the cycle before changing the block.
Fault codes for Cointra that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| A09 | Gas valve anomaly | The gas valve may be faulty or have interrupted actuator/wiring, preventing its opening or modulation; check the continuity of the wiring and power supply to the actuator and ensure that the valve opens on demand. |
| A16 | Gas valve anomaly | Fault in the valve or its actuator/wiring; check continuity of the modulating actuator and presence of control signal from the PCB, replacing the valve if it does not operate correctly. |
| F50 | Gas valve anomaly | Modulating actuator error (wiring interrupted) or faulty valve; check continuity of the actuator/coil and control voltage, and replace the valve if it does not respond. |
| A62 | There is no communication between the control board and the gas valve. | The valve may be faulty or not responding to the signal from the control board; check connectors and wiring between the PCB and the valve, presence of control signal, and replace the valve if it does not communicate. |
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 Cointra gas valve 9158878
- Catalogue reference
- 9158878
- Brand
- Cointra
- Type of part
- Gas valves
- Units in stock
- 1 unit
- 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
- Anstoss (ZIG)
- Component code
- VZ 2/10 HDC
- Voltage
- 220-240 V
- Power
- 1.5 VA
- Frequency
- 50-60 Hz
- Temperature range
- -20°C / +60°C
Frequently asked questions about the gas valve 9158878
Is the Anstoss VZ 2/10 HDC 600 connector a complete gas valve?
Who manufactures the ignition connector Ref. 9158878 for the Cointra SPC 21 EI?
Does this Anstoss connector work for a Cointra SP 27 EI boiler?
What voltage does the ignition connector of the Cointra SPC 21 EI operate at?
Why did the catalog refer to this Anstoss ignition connector as a 'valve'?
Spare parts related to Cointra SP
