Observation:
If you are replacing both the main PCB and the Display PCB remember to swap over the coding resistor.
If you replace both components at the same time the boiler will automatically switch to the menu for language setting.
The default language setting is English so press "OK" to confirm the setting. (if another language is required use the +/- buttons to select the desired language and then confirm the setting by pressing "OK")
The next step is brought up automatically and requires the relevant appliance type to be set (refer to the appliance data badge for this information)
Use the +/- buttons to set the correct number as per the table below:
Confirm the setting by pressing "OK" the appliance is now ready to use.
IF THE APPLIANCE STILL SHOWS THE SAME FAULT CODE CLICK HERE
If you replace both components at the same time the boiler will automatically switch to the menu for language setting.
The default language setting is English so press "OK" to confirm the setting. (if another language is required use the +/- buttons to select the desired language and then confirm the setting by pressing "OK")
The next step is brought up automatically and requires the relevant appliance type to be set (refer to the appliance data badge for this information)
Use the +/- buttons to set the correct number as per the table below:
| Vaillant eco TEC plus | Device Specific Number | 824 (VUW GB246/5-5) | 6 |
| 831 (VUW GB 316/5-5) | 10 |
| 837 (VUW GB 376/5-5) | 17 |
Confirm the setting by pressing "OK" the appliance is now ready to use.
IF THE APPLIANCE STILL SHOWS THE SAME FAULT CODE CLICK HERE