Rheem Heat Pumps: RPNL/RPQL
Re: Lockout Codes
"L" Terminal Output | |
Flashes | Description |
1 | Compressor running extremely long cycles |
2 | Low or High Pressure control trip |
3 | Unit short cycling |
5 | Compressor will not run |
8 | Control mis-operation |
9 | Low control voltage |
7-Segment Display Codes | ||
0 | Standby | No call for operation |
c | Call on Y1 | 1st Stage Unit Operation |
C | Call on Y2 | 2nd Stage Unit Operation |
d | Defrost | Unit is in Defrost Mode |
d (flash) | Abnormal Defrost | |
F | ICC Fuse Open | Low voltage short |
21 | Low pressure trip (auto reset) | |
L21 | Low Pressure Lockout (hard lockout) | |
23 | High Pressure Trip (auto reset) | |
L23 | High Pressure Lockout (hard lockout) | |
25 | Bad OD Temperature Sensor | Control will continue to operate |
27 | Abnormally Low Line Voltage | |
28 | Abnormally High Line Voltage | |
L5 | Compressor Lockout (hard lockout) |
Hard Lockout Reset Methods:
FAULT RECALL
To enter FAULT RECALL mode press both TEST and SW2 buttons at the same time with insulated probes for 1 second and release.
CLEAR FAULT HISTORY
To clear FAULT HISTORY press both TEST and SW2 buttons at the same time with insulated probes for 5 seconds and release.