Larry Keller
Feb 11, 2010, 08:42 PM
Thermostat show E1 error code. What does that mean?
hvac1000
Feb 11, 2010, 09:48 PM
E1 The system is not communicating properly. Call the
local Carrier representative for service
Right out of here
http://www.xpedio.carrier.com/idc/groups/public/documents/techlit/33cs-20so.pdf