60
Table 19. Alert Codes and Troubleshooting
Initial notification of critical alerts will pop-up on the home screen and will be listed under notification menu. Minor and moderate alerts are found only under the notification menu. Moderate alerts
are not e-mailed to Homeowners. Dealers will get an email and code can be seen on thermostat under the installer notification section.
NOTE:
Anytime the word
DEVICE
or
DEVICE2
is used in this table, it will be replaced on all alert code notification screens with the actual offending device name, for example, thermostat, heat
pump, etc.).
Alert
Code
Inverter
Flash
Code
Priority
Condition
Applicable
Component
Actual Displayed
Alert Text
Component or System Operational State and Troubleshooting Tip
105
Critical
All
communicating
components
Communication
Problem
One of the system components has lost communication with the system. The system component (device) is unable to
communicate.
•
S30
- Access dealer control center, select notifications icon, review alert code details to determine which device or unit has
the communication problem. Review both active and cleared alerts.
•
iHarmony Zoning
- Remove wire from smart hub to iHarmony control and just have wiring from furnace.
Troubleshooting:
• Check each control for additional codes
•
In most cases issues are related to electrical noise. Verify that high voltage power is separated from the low voltage
communication wires.
•
Check for proper grounding on line voltage and low voltage wiring, transformer and equipment.
•
Check for incorrectly wired or loose or spliced connections between system components (devices or units).
• Make sure all unused wires are tied together and taken back to the
C
terminal on the indoor control board as shown in the
installation and setup guide.
•
Make sure that smart hub has proper software version for added accessory. (Example: Pure Air
S
and/or Apple Home Kit
must have software version 3.4 or higher before it will connect to system properly. (If software is not updated in system it will
cause system operation issues).
• If zoning is installed and is wired directly from smart hub to iHarmony control then disconnect that wiring. Run control wiring
from the iHarmony control directly to the indoor unit control. Wiring diagrams are provided in the iHarmony Installation and
Setup Guide.
•
When using a float switch, use isolation relay to break common wire to outdoor unit. For testing purposes, remove float
switch from the circuit.
•
Disconnect all wiring to other system components (except thermostat to indoor unit) and reconnect one device at a time and
recommission system each time a device is reconnected until the issue is located. See
• Automatically clears when the system detects the issue no longer exists.
110
Critical
Furnace
Low AC Line
Voltage
The component AC line voltage is too low. This alert code may appear during a brownout.
•
It may also occur when line voltage is below its designed operating value.
•
Check and correct the power line voltage.
• Automatically clears when the system detects the issue no longer exists.
111
Critical
Furnace
Line Polarity
Reversed
The unit is reporting that its power and neutral lines are reversed.
•
Turn off the power to the system and correct the line power voltage wiring.
•
System resumes normal operation five seconds after critical condition is recovered.
• Automatically clears when the system detects the issue no longer exists.
112
Critical
Furnace
No Ground
Connection
The reporting component cannot find earth ground. The thermostat will shut down the system.
•
Provide proper earth ground to the equipment.
•
System resumes normal operation five seconds after critical condition is recovered.
• Automatically clears when the system detects the issue no longer exists.
