59
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
40
Critical
Heat Pump
HP Heating
Lockout.
The heat pump could not increase the room temperature 1/2 degree towards the set point in 30 minutes.
To use the gas furnace as a primary heating source (not defrost tempering) when the outdoor temperature is between the high
and low balance points, the heat pump:
• Must be used for a minimum of 30 minutes and the temperature in the zone not increase by more than 1/2 degree.
• Has not gone into defrost in the 30 minute period.
The default for HP Heating Lockout Time default is 120 minutes and will lock the heat pump out when the outdoor temperature
is above the high balance point. Selectable range is 60 to 240 minutes.
• Go to
menu
>
settings
>
advanced settings
>
dealer control center
>
equipment
>
smart hub
and located
HP Heating
Lockout Time
to verify the lockout time setting.
•
Check air flow to the zones or zones.
• Check discharge air temperatures.
• Check calibration of room thermostat.
(Outdoor unit) When the heat pump could not get a zone thermostat to progress 1/2 degree towards the set point in 30 minutes
the system will lock out the heat pump and switch to the secondary heat source. (Electric heat or if in dual fuel applications the
furnace will be used and the system put in heat pump heating lockout timer) default is 120 minutes. It will lock the heat pump off
and the gas furnace will finish the heating cycle
Set the low and high balance points as close together as possible. (This will be a three degree difference – Example: set high
balance point at 25°F and low balance point would set at 22°F). Below the low balance point, the furnace will heat the home
/ between the low and high balance point, the heat pump and furnace will heat the home. I when the outdoor temperature is
above the high balance point, the gas furnace is locked out and all the heat is provided by the heat pump.
41
Moderate
All
communicating
components
Control Board
Replaced
• This alert code will appear anytime a communicating control [
Furnace, air handler, PureAir S, damper control module, air
conditioner or heat pump]
is replaced in the system.
• Must be cleared manually.
