Alto-Shaam Combitherm CT PROFORMANCE Series

94
•
MN-35949
•
Rev 07
•
01/20
•
Combitherm® CT PROformance™ and CT Classic™ Series Technical Service Manual
Troubleshooting
Error Code E05/E06
Request E05 service kit and dispatch service agent.
Is the Variable Frequency Drive(VFD) address jumper
properly populated on the board?
No
Add or remove the jumper and retest.
Yes
Is S905 populated with the jumper(on single VFD systems)
or the last VFD(on dual VFD systems)?
No
Populate and retest.
Yes
Is the LED on the VFD illuminated?
No
Check the fuses for continuity, replace the blown fuses. L1 is
supplied from the F4 fuse. L2 is supplied by terminal5 of RL
Y50. Retest.
Yes
Is voltage supplied to the VFD on terminalS105 L1/L2?
No
Replace the VFD.