Rheem RA17 Series Installation Instructions Manual page 27

ICC Diagnostic Codes
Descriptions of the ICC diagnostic codes are provided below:
Dual 7-Segment
LEDs Display
Code
0 – Standby
No command for unit operation
c - First Stage Cooling
Unit has received a command for first stage
cooling
c - Anti-short cycle timer (3 minutes) or
Minimum run timer (30 seconds) active
FLASHING
C - Second Stage Cooling
Unit has received a command for second
stage cooling
C - Anti-short cycle timer (3 minutes) or
Minimum run timer (30 seconds) active
FLASHING
P – Protector Trip
A command for compressor operation is
present but no current is measured to the
compressor
01 – Long Run Time (Compressor)
The compressor has continuously run for
more than 18 hours in the cooling mode.
02 – High Side Fault
Compressor limit has opened four (4) times
within a call for operation
03 – Short Cycling
The ICC detects the run time for the past
four (4) compressor cycles is less than three
(3) minutes each.
ECONET COMMUNICATION SYSTEM™ CONTROL WIRING
CONVENTIONAL THERMOSTAT WIRING
ICC DIAGNOSTIC CODES
Diagnostic Description
AND
Status/Possible Cause – Troubleshooting
Normal operation
Normal operation
• The unit has received a command for first stage
cooling during an active anti-short cycle timer
or minimum run timer.
• Wait until unit timer has expired or press the
TEST button to defeat short cycle delay.
Normal operation
• The unit has received a command for second
stage cooling during an active anti-short cycle
timer or minimum run timer.
• Wait unit timer has expired or press the TEST
button to defeat short cycle delay.
• Motor protector open
• Line volta e disconnected
• Low refrigerant charge
• Air ducts have substantial leakage
• Dirty indoor air filter
• Dirty outdoor coil
• Outdoor coil is dirty (cooling mode)
• Outdoor fan is not running (cooling mode)
• Dirty indoor coil or filter (heating mode)
• Indoor blower is not running (heating mode)
• Liquid line restriction
• Excessive refrigerant charge
• Check thermostat wire connections (R, C, 1, &
2)
• Check thermostat location in zone (too close to
discharge grill)
INSTALLATION
Information
27