[pestes]

Thanks, Richard. "No" was pretty much my expectation.

We arrived here on Saturday, so we've been here a few days thus far. We've got a new pedestal about every week. I do have a Progressive EMS with no faults on this pedestal.

I have the relays, but I never got a chance to do the job before hitting the road and haven't taken the time to do it while on the road.

I am certain, however, on both units that the signal was being triggered from the thermostat, and not a stuck relay on the control board. At least, unless there are 2 signals that must be present from the control board. I'm trying to think back to what made me come to that conclusion last night. I believe it was because if I switched the thermostat to Heat -- the compressor went off. Switched it back to Off and the compressor came on.

Also, just to be clear, my statement of "the compressor was running" means that the unit was making noise but the evap blower was not running. I would presume that the thermostat does not control the condenser fan and compressor separately, that a single signal from the thermostat will trigger both. The logic table in the SCS documentation seems to confirm that - Relays 5, triggered by Y1 from the thermostat powers both Compressor 1 and the Low side of the condenser fan, with Y2 driving Relay 5 and thus Comp 2 and the High side fan.

It's been running ok today, although it has been warm enough that it has not stopped running. I am fearing low freon levels may be an issue as it's only been in the mid 80's here today. I need to see if I packed the clamp meter to check current on the compressors.

If I can get the compressor running, evap fan not running state again, I'll pull out the multimeter to get a better look. Bed time was an unfortunate time for this to start acting up last night.