I installed an American Standard Forefront air handler, 20 SEER heat pump, and the fancy thermostat at a house about 2 hours away from home. Normally this is too far for me but it was a referral job with a decent profit.
The customer has emailed me, saying that the stat is showing an alert code CFG 004.00 I have looked through all the literature I can find through American Standard with zero success. He has rebooted the system and it is running but the error code is still showing.
Does anybody know what this is?