86
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
436
62
Moderate /
Critical
Variable
capacity
outdoor unit*
OD Inverter
High Heat-Sink
Temperature
Inverter heat sink temperature exceeded limit
.
•
This occurs when the heat sink temperature exceeds the inverter limit. Inverter will issue inverter alert code 13 first and slow
down to try to cool the heat sink.
• If temperature remains high, outdoor unit will stop both compressor and fan – moderate condition.
• Anti- short cycle is initiated.
•
If condition occurs five times within an hour, system will lockout – critical condition.
•
The screws that hold the inverter to the inverter board were loose causing poor contact between these two components.
•
Tighten screws that hold the heat sink to the inverter control board.
NOTE:
Wait five minutes for all capacitors to discharge before checking screws.
•
Inverter LEDs will flash code 62.
•
Refer to the unit service documentation for detailed troubleshooting procedures.
Inverter flash code 62. The sequence is:
• Red LED: Six Flashes
• Green LED: Two Flashes
Moderate condition will automatically clear when the inverter sends an alert code clear message. Critical condition is cleared by
disconnecting power to the outdoor unit and restart.
437
65
Moderate /
Critical
Variable
capacity
outdoor unit*
OD Inverter Heat-
Sink temp Sensor
Fault
Heat sink temperature sensor fault has occurred (temperature less than 4ºF or greater than 264ºF after 10 minutes of
operation)
.
•
When the temperature sensor detects a temperature less than 4ºF or greater than 264ºF after 10 minutes of operation.
• Outdoor unit will stop both compressor and fan – moderate condition.
• Anti-short cycle is initiated.
•
If condition occurs five times within an hour, system will lockout – critical condition.
•
Inverter LEDs will flash code 65.
•
Refer to the unit service documentation for detailed troubleshooting procedures.
Inverter flash code 65. The sequence is:
• Red LED: Six Flashes
•
Green LED: Five Flashes
Moderate priority condition will automatically clear when the inverter sends an alert code clear message. Critical priority
condition can be cleared by disconnecting and reconnecting power to outdoor unit to restart.