11
Alert Codes
Table 4. Alert Codes
Error
Code
Message
Type
Condition and
Email Notification
Description
Thermostat Display
Text
System Action
Action to Clear /
Recovery Condition
- -
Critical
Possible loose
or mis-wired
connections or two
zone sensors are
assigned the same
zone number.
Two dashes will
be displayed
on the S30
thermostat and/or
Zone Sensor..
- -
On the S30
thermostat,
the system will
go into central
mode. Individual
zone function is
disabled.
Indoor temp is displayed as “--” on the home screen.
inside
0
1
Anytime the zone sensor loses communication with
the damper control module, the entire system will go
into central mode.
If two zone sensors are assigned the same zone
number, this could cause the double dashes to
appear as well. See “Apply Power and Set Zone
Numbers” on page 7.
If loose or mis-wired connection was confirmed,
correct issue and run the re-configure procedure
(see “Zone Control Settings After Thermostat Initial
Commissioning” on page 9.
Summary of Contents for iHarmony Zone Thermostat
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