62
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
116
Critical
Furnace or Air
Handler
High Secondary
(24VAC) voltage
• Thermostat will display this code when 24VAC power is high (18 to 30 VAC).
•
Will display Furnace or Air Handler High Secondary (24VAC) voltage.
•
Check and correct voltage. Check for proper line voltage (120V, 240V, etc.) to equipment. Clears when control senses proper
voltage.
120
Moderate
All
communicating
components
Unresponsive
DEVICE2.
There is a delay in the system component responding to the system. Typically this alert code does not cause any operational
issues and will clear on its own.
• This alert code is usually caused by a delay in the outdoor unit responding to the thermostat.
• Check all wiring connections.
•
Automatically clears after an unresponsive system component (device) responds to any inquiry.
124
Critical
All
communicating
components
Active Subnet
Controller Missing
(Active Component
Communication
Device Missing)
The thermostat has lost communication with a system component for more than three minutes. System component has lost
communication with the thermostat.
• Check the wiring connections between components.
• Ohm wires.
• Cycle power.
• Any component that is miss-wired may cause a false component code to be shown on system component.
• Disconnect all wiring to other system components and check communication one at a time.
NOTE:
When using a float switch, use isolation relay to break common wire to outdoor unit. For testing purposes, remove float
switch from the circuit
This alert code stops all associated system operations and waits for a heartbeat message from the system component that is
not communicating.
•
Automatically clears after communication is re-established with applicable system component (device).
125
Critical
All
communicating
components
Control Hardware
Problem
There is a hardware problem on a system component control. There is a control hardware problem.
•
Replace the control if the problem prevents operation and is persistent.
•
Damper control module will remain in non-zone mode (all dampers open) for five minutes after priority condition no longer
exist.
•
Remove jumper if present on indoor unit between
R
and
W2
if equipment interface module is in use.
• On the PureAir
S
control the jumper selector is missing.
•
Automatically clears five minutes after the issue no longer exists.
