What does it mean if my Vaillant ecoTEC pro 24 Boiler indicates a gas valve control defect?
A gas valve control defect could mean there is a short circuit or earth (ground) leak in the cable harness to the gas valves, the gas valve assembly is defective (earth/ground leak from coils), or the electronic control system is defective. Inspect and repair the gas valve control circuit.
Why is there incorrect sensing of flame in my Vaillant ecoTEC pro 24 Boiler?
Incorrect sensing of flame in your Vaillant Boiler is caused by a defective flame detector. Replace the flame detector.
Why is the safety temperature limiter by NTC activated in my Vaillant ecoTEC pro 24 Boiler?
The safety temperature limiter by NTC might be activated because the Flow-NTC is not correctly thermal-connected or is defective, causing the appliance not to shut down. Check the thermal connection of the Flow-NTC and replace it if defective.
What to do if my Vaillant Boiler shows a gas valve shutoff delay?
If your Vaillant Boiler shows a gas valve shutoff delay, the gas valve may be leaking, or the electronics may be defective. Inspect the gas valve for leaks and test the electronics.
What does it mean if my Vaillant Boiler shows eBUS undervoltage?
An eBUS undervoltage indication means there could be a short circuit on the eBUS, an overload on the eBUS, or two power sources on the eBUS with different polarity. Check the eBUS connections and power sources.
What causes fan speed variation in my Vaillant Boiler?
Fan speed variation in your Vaillant Boiler can be caused by a blocked fan, a plug not inserted correctly on the fan, a defective hall sensor, a fault in the cable harness, or defective electronics. Check the fan for blockages and connections, and inspect the sensors.
What to do if my Vaillant ecoTEC pro 24 shows water shortage and a quick temperature rise?
If your Vaillant Boiler indicates a water shortage and a quick temperature rise, the pump might be blocked, the pump output might be insufficient, there might be air in the appliance, or the water pressure might be too low. Check and unblock or replace the pump and ensure adequate water pressure.
What to do if my Vaillant ecoTEC pro 24 shows water shortage and large temperature difference?
If your Vaillant Boiler indicates a water shortage and a large temperature difference between the flow and return NTC, the pump might be blocked or defective, the pump output might be too low, or the flow and return NTCs might be interchanged. Check and unblock or replace the pump and verify the NTC placement.
Why is there a dry fire in my Vaillant Boiler?
A dry fire in your Vaillant Boiler can occur due to too little water in the appliance, a defective water pressure sensor, a defective cable to the pump or water sensor, a blocked or defective pump, or a pump output that is too low. Ensure sufficient water supply and check the pump and sensors for faults.
What to do if the flame goes off during operation of my Vaillant ecoTEC pro 24 Boiler?
If the flame goes off during operation and subsequent ignition attempts fail, it could be due to a temporarily stopped gas supply or faulty earthing of the appliance. Check the gas supply and earthing connections.
General| Model | ecoTEC pro 24 |
|---|---|
| Category | Boiler |
| Output | 24 kW |
| Fuel Type | Natural Gas |
| Boiler Type | Combi |
| Mounting | Wall-mounted |
| ERP Rating | A |
| DHW Output | 24 kW |
| Max. working pressure | 3 bar |
| Fuel | Natural Gas |
| Warranty | 2 Years |
| Efficiency | 89.3% |
| Dimensions | 720mm x 440mm x 338mm |
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