SeeTemp set LED blinking, HVAC controller does not trigger call for heat, or fan,
I have 3 SeeTemps and 3 wireless temperature sensors associated with an HVAC controller. (In another zone, I have one SeeTemp and two wireless sensors, and that one is still working).
All was working before today. Today, the room set (green) LED on the SeeTemps started blinking fast. According to the manual, that means there is a problem communicating with the wireless sensors. And although the Heat LED blinks slowly on each of the SeeTemps, the heat never comes on.
Turning the fan to "On", rather than "Auto", has no effect. The fan does not go on.
When I use the diagnostic tool in the RadioRA app, it reports no connectivity problems, but of course the temperature sensors do not support diagnostics.
I rebooted the HVAC controller by turning off the breaker to the air handler, waiting 30 seconds, and turning it back on.
Since the manual says that this blink pattern is related to communication with the wireless temperature sensors, in the software, I detached the 3 temperature sensors from the controller, re-attached them, and transferred the program.
If I put the SeeTemp in "Cool" mode, then "Fan On" works, and "Fan Auto" turns it off. However, even if I set the temperature to 60º, it does not call for cooling. On the other hand, if I leave it there long enough, the set light stops its fast blinking. (It starts blinking again after switching to heat and waiting.)
I know it seems like I've tried everything but looking at the HVAC controller itself. Well, it's in an attic crawl space that is hard to access, so I'm looking for everything else to try before I go up there. Is there anything else to try?
Thanks,
Bill