26
Flash Code ActionsPo ssible CausesMode
Reset
Time
Amber LED DescriptionTy pe
99
System
Malfunction
HIGH TORQUE LOCKOUT
(Elevated from fault code
98 when 98 occurs at low-
est stage)
2hours
Cool Overcharged System
Check system subcooling to determine
charge status, if high remove charge using
Charging Mode (follow proper charging
procedures)
Heat Overcharged System
Check charge in heating mode per heating
check charge chart. If pressures do not
match then pull out charge, weigh in using
heating charge method
Both Miswire
Check miswire of compressor leads at ter-
minals U,V,W
Both
Outdoor Airflow too
low or off
Check ODU coil for clogging (ice or de-
bris) and clean if necessary; Troubleshoot
ODU fan motor an d make sure it is work-
ing
Both
Expansion Device
Restriction
Troubleshoot TXV
Troubleshoot EXV
Heat Overcharged System
Check charge in heating mode per heating
check charge chart. If pressures do not
match then pull out charge, weigh in using
heating charge method
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