Honeywell Gas Valve for Cointra Supra SP 27 E I - Ref. 9158878
Honeywell gas valve for Cointra Supra SP 27 E I - Ref. 9158878. This valve regulates and allows the flow of gas to the burner as instructed by the boiler's PCB. If it malfunctions, the boiler may fail to ignite, experience flame lockouts, or have modulation issues. It is compatible with models such as Cointra 21 EI and 27 EI, among others. It is recommended to replace it at any sign of failure to avoid issues with the boiler's operation.
VAT included
Consult via WhatsAppCointra boilers compatible with reference 9158878
Gas valve with reference 9158878. Five 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 | 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 gets locked on the first attempt.
Cause: The gas valve does not open the gas flow or opens it too late, and the control board cuts off the ignition for safety.
Check the gas inlet pressure at the connection before assuming that the gas valve is not opening: low pressure gives the same symptom.
- 02
The flame rises and falls without reason, it does not remain stable at one point.
Cause: The auxiliary actuator that regulates the modulation does not respond accurately, and the gas valve allows more or less gas than what the control board requests.
Check if the fault occurs only at minimum power or throughout the entire range; if it is only at minimum, first check the flow temperature sensor.
- 03
There is a noticeable drop in gas pressure when the boiler is on.
Cause: An internal leak in the gas valve reduces the flow reaching the burner, affecting combustion.
Check with the installation manometer if the pressure drops only when the boiler is on, indicating that the problem is downstream of the gas valve.
- 04
There is a slight smell of gas around the body of the gas valve.
Cause: The actuator or the valve body has lost tightness due to wear.
Apply soapy water to the joints and the casing before changing the part, to confirm that the leak is coming from the valve and not from a nearby thread.
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
- 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.
- Auxiliary actuator voltage
- Max. 12 V
- Auxiliary actuator current
- Max. 210 mA
- Ambient temperature
- -15°C to 60°C
- Gas category / nominal pressure
- CAT I2H, Pnom 96 mbar, class B+
- Voltage V1+V2
- 220V/240V
- Country of manufacture
- Netherlands (Made in the Netherlands)
Frequently asked questions about the gas valve 9158878
Is this valve of the Cointra Supra SP 27 E I Honeywell?
Where is the gas valve that the Cointra SPA 27 EI uses manufactured?
What function does this valve perform in addition to regulating the gas in the Cointra ED 21 EI?
What fault of the Cointra SPI 21 EI is this gas valve replaced for?
Spare parts related to Cointra SP
