Vaillant Fault Codes

 
 
 

Vaillant Fault Codes

 

EcoMax Pro 18/28E Fault Code

Possible Cause

F.1

Lack of gas, a fault with the ignition or flue, or you may need to adjust the gas valve or replace a defective electrode lead.

F.4

Ignition fault.

F.5

The system has suffered a fault due to overheating.

F.6

Your flow NTC (temperature sensor) has developed a fault.

F.17

Check the polarity of your system

F.21

The pump could have failed, over run or there could be an issue with the air lock.

 

Turbomax Plus 824/8E

         Possible Cause

F.00 N

           The flow NTC (Negative Temperature Coefficient Thermostat) cable is either defective or broken and needs replacing.

F.01

          The flow NTC (Negative Temperature Coefficient Thermostat) cable is either defective or broken and needs replacing.

F.10

          Short circuit with the NTC.

F.13

          Short circuit with the NTC.

F.20

          Your boiler has exceeded the maximum temperature and needs to cool.

F.22

          There is dry fire, low water in the system which is overheating. You may have a defective pump or pump lead.

F.24

          Your pump could be obstructed, at low capacity or there could be trapped air. The pressure of your system could be too low.

F.28

          There is insufficient gas, a defective electrode, ignition lead or electronic ignitor. 

F.29

          Your flame or pilot light has gone out. Check your flue duck or gas supply to see if there is a problem. 

F.60

          Your cable loom which connects your gas valve may have short circuited. You could have a defective gas valve or electronic control system.

F.61

          Your cable loom which connects your gas valve may have short circuited. You could have a defective gas valve or electronic control system.

F.62

          Your boiler has exceeded the maximum temperature and needs to cool down.

F.63

          This is an electronic fault within your system. An error with your EEPROM (electrically erasable programmable read-only memory.)

F.64

           Your flow or backflow NTC has suffered a short circuit or an electronic fault.

F.65

           Electronic system temperature too high, potentially due to an external heat source or electrical fault.

F.67

           Electronic fault in flame system.

 

 

 

 

Bing Digital