CVH8, HVH8, TVH8, VA9, HVA9, TVA9: APPLICATION GUIDELINE & SERVICE MANUAL
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20
83
System
Malfunction
LOW PRESSURE
LOCKOUT FOR 4
HOURS
(Elevated from fault code
32 after 3
occurrences)
4 Hours
Cool
Service Valve left
closed (Liquid or
Vapor)
Ensure Service Valves are open
Cool
Undercharged
System
Check system sub-cooling to determine charge
status, if low add charge using
Charging Mode (follow proper charging
procedures)
Cool
Indoor Airflow too low
or off
Check Indoor for clogging (ice or debris) and clean
or de-ice if necessary; Troubleshoot
Indoor fan motor and make sure it is working; follow
Indoor Airflow troubleshooting instruction
Cool
Restriction in Circuits
or Tubing
Repair restriction
Heat
EXV Malfunction
Troubleshoot EXV (see guide below)
Heat
Service Valve left
closed (Liquid
Service Valve)
Ensure Liquid Service Valve is open
Heat
Outdoor Airflow too low
or off
Check Outdoor for clogging (ice or debris) and
clean or de-ice if necessary; Troubleshoot Outdoor
fan motor and make sure it is working; follow
Outdoor Airflow troubleshooting
instruction
Heat
Undercharged
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
Restriction in Filter
Drier
Check for temperature drop across filter drier and
replace if necessary
Both
Expansion Device
Restriction
If short lineset (less than 15 ft.) Troubleshoot TXV
(see guide below); replace if necessary
Table 10 – Fault Code Actions (Continued)
Flash
Code
Type
AMBER LED
DESCRIPTION
Reset Time Mode
Possible Causes
Actions
