Switch Actuator Programming Led blinking

[IC_Systems]

Hello Dears,

I have MTN649212 Switch actuator, its stop responding, I see the run led off and the programming led blinking and didnt stop when press on the programming button!

how could solve this issue?

[gianmarco.nardo]

What about the "manual"  LED status? Is it fixed or blinking red or totally off?

[IC_Systems]

Hello @gianmarco.nardo 

its totally off

[gianmarco.nardo]

Did you try making a full download of the device (Physical Address + Application)?

[IC_Systems]

The device was already have application and individual address.

while after the issue, I couldnt download any of (physical address or Application) while the programming led keep pinking, programming button didnt change anything  

[IC_Systems]

Dears,

How to do a factory reset? I would give it a try if possible.

[Thomas_Rohde · Accepted solution]

Hello IC_Systems,

if the topic is still valid ... please try the following:
1. Disconnect the device from KNX.

2. Press the programming button and keep it pressed

3. Connect KNX again while keeping the button pressed
4. After a few seconds you can release the button and the device should perform a factory reset.

Please let me know if it helped.