FBD 77 Series Installation & Operation Manual page 51

77X INSTALLATION & OPERATION MANUAL
771/772/773/774 MODELS
Copeland
ZB15KCE-PFV
Copeland
ZB19KCE-PFV
Error #521, 522, 523, 524: Refrigeration Solenoid Stuck Open
Error #531, 532, 533, 534: Defrost Solenoid Stuck Open
Verify the solenoid is not activated by going to the MANUAL ON/OFF menu. Remove wiring from
the suspect solenoid and check for 24 VAC.
1
Note: The voltage will read ~19 VAC when not powered.
2 If no voltage (~19 VAC), then replace the solenoid valve.
3 If 24 VAC is present, then replace the control board.
Error #561, 562, 563, 564: Refrigeration Solenoid Not Opening
Error #571, 572, 573, 574: Defrost Solenoid Not Opening
1 Remove the wiring harness from the suspect solenoid.
Manually turn on the solenoid using the SERVICE MENU and check for 24 VAC at the wiring harness.
2
Note: The voltage will read ~19 VAC when not powered.
3 If 24 VAC is present, then replace the solenoid.
4 If no voltage, then replace the control board.
Error #581, 582, 583, 584: Beater Motor Not Turning On
Remove the control board and check for blown motor fuses (Motor 1: F3 & F4, Motor 2: F5 & F6,
1 Motor 3: F7 & F8, Motor 4: F9 & F10).
A motor or capacitor malfunction may be caused by a blown fuse.
2 If fuses are OK, reinstall control board.
3 Disconnect wiring harness from suspect beater motor.
Manually turn on beater motor using the SERVICE MENU and ensure there is line voltage on pins 1
4
& 3 of supply harness (outside pins).
If correct voltage is present, substitute a "known to be good" capacitor and try to operate motor
5 again. If no voltage is present (when activated through the menu), then replace the beater motor
power harness.
6 If motor fails to start with working capacitor, then replace both motor and capacitor.
Compressor Winding Resistance
Model
C - R
0.94-1.08
0.84-0.97
C - S
2.12-2.44
2.52-2.90
49