Rheem RASL-JEC Installation Instructions - Page 39

Electrical Checks Flow Chart

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18.3 Electrical Checks Flow Chart Thermostat call For cooling, no cooling Outdoor Unit Running? Yes No Refer to panel cover/documentation for Fault Code Troubleshooting. Check fault history for other faults. 7-Segment display lit? Yes No Check control voltage (R and C) to control Y1 LED lit? Yes No No call received. 24V Systems: Check thermostat, control wiring Comm Systems: Check comm. wiring, T-Stat No Flashing Mode Character Waiting for Anti-S.C. Delay to clear Yes No Alternating "C" and "##" (Code) Yes Note: For solid comm LED, check comm wiring, term/bus switches at ICC and AH ctrls. Control in Lockout Mode. Check fault history and refer to Diagnostic Chart. SEE PANEL COVER OR OTHER DOCUMENTATION FOR FAULT CODE TROUBLESHOOTING. 39

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39
18.3 Electrical Checks Flow Chart
No
No
No
No
Yes
Yes
Yes
Yes
Outdoor Unit
Running?
7-Segment display lit?
Flashing Mode Character
Alternating “C” and “##” (Code)
SEE PANEL COVER OR
OTHER DOCUMENTATION
FOR FAULT CODE
TROUBLESHOOTING.
Control in Lockout Mode.
Check fault history and refer to
Diagnostic Chart.
Note: For solid comm LED, check
comm wiring, term/bus switches at
ICC and AH ctrls.
Refer to panel cover/documentation
for Fault Code Troubleshooting.
Check fault history for other faults.
Check control voltage (R and C)
to control
Waiting for Anti-S.C. Delay to clear
Thermostat call
For cooling, no cooling
No
Yes
Y1 LED lit?
No call received.
24V Systems: Check thermostat,
control wiring
Comm Systems: Check comm.
wiring, T-Stat