Comfosense 67 reliability

[hauntedicecreamvan]

I have a Zehnder Comfoair 180, with a Comfosense 67/CCS controller (RS232 comms). The controller has capacitive pads under the plastic faceplate, and after working fine for a couple of months with light usage it suddenly become unreliable with missed button presses, gradually getting worse to the point that it had to be operated with the plastic plate removed, and eventually mixing up key presses or phantom presses. I swapped it out for a spare Comfosense and the replacement is working fine.

 

Has anyone here experienced reliability issues with these controllers? It seems potentially quite fragile, being based on a flexible PCB which sits wedged between the plastic display surround and the front cover.

 

I don't see myself interacting with it much from now on anyway, since flow rates are commissioned, and boost is controlled via the bathroom switch input by Home Assistant based on air quality and humidity rise/fall rules.

[Mike]

Not yet. I also plan to get mine hooked up to Home Assistant in due course.

[JohnMo]

Obvious question, is why do you even need a controller - once set what is there to adjust. MVHR commission forget, except filter cleans/changes