OK, I misunderstood. I thought you had 2 FRM01's (one per siding). To be clear, are those diodes shown in the yellow boxes under the black heat shrink? And they are oriented with the white or silver stripe/band on the bottom side as illustrated?
I believe the FRM01 has a power-on LED that lights whenever power is applied...and a different relay-on LED that turns on when the relay clicks on. I assume that once you turn on the first siding (whether it be siding A or siding B), the FRM01 power-on LED turns on and stays on even after the relay clicks on then off. Right?
In other words, the FRM01 is performing the Delay-OFF function once and only once for the first siding. Then the FRM01 is now on and does not "re-trigger" its Delay-OFF function for the second (third, fourth, etc.) siding. This is the classic re-trigger conundrum. As shown in this earlier diagram, if using the FRM01 "Function 02", there is one timer module PER SIDING. So in your 2 siding test setup, that would be 2 FRM01's set to Function 02.
Separately, do you have a "stash" of assorted capacitors lying around? Just thinking ahead for possible work-arounds...
