Code Meaning
E1 Indicates that the thermostat keypad is not communicating with the control module.
The thermostat can not control the furnace/AC in this condition
E2 Indicates that the temperature sensor in the keypad module has failed
E3 Indicates that DHCP (Dynamic Host Configuration Protocol) is not functioning on your
home network
E4 Indicates that the control module has lost communication with the BAYweb portal
E5 Indicates that the non-volatile memory was corrupted or lost
Control Module
Alert Input
This input can be used to connect to a variety of wired sensors, such as a sump pump
monitor or alarm door contacts.
To use this feature, wire terminal 1 to one side of a set of dry contacts, and terminal 2 to the
other side. The Settings page on the Web Portal is used to configure normally open or
normally closed contacts.
CAUTION: Do not connect the Alert input to any external voltage source. Dry
contacts only. Failure to do so may cause equipment damage.
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