Maxi Comet Executive Exec-66-G - Ribbon Set Not Working; Rotating Elements Stop

Comet Executive Gas Troubleshooting
6-7
WARNING
Only trained personnel with experience
in gas, electrical or mechanical repair
should troubleshoot and repair the unit.
Troubleshooting
WARNING
Read the REPAIR chapter and make
sure that the power is disconnected
before doing any repairs.
ISSUE POSSIBLE CAUSE SOLUTION
Ribbon Set Not Working
1. Improper tension on rib-
bons.
• Adjust/Replace. Refer to REPAIR and
the appropriate section for the specic
procedure.
2. Roll friction material is worn
smooth.
• Adjust/Replace. Refer to REPAIR and
the appropriate section for the specic
procedure.
3. Refer to the Rotating Elements Stop issue next.
Rotating Elements Stop
1. Drive chain is slipping or
broken.
• Adjust tension or replace if broken.
2. Idler pulley loose or frozen. • Adjust tension or replace.
3. A motor protector has
tripped.
• Reset the motor protector. If it continues
to trip, check the setting.
4. There is an open circuit be-
tween the contactor and the
motor protector, or between
the motor protector and the
motor.
• Check for an open connection in one of
the wires on a 3-phase motor.
• Motor protector is defective and needs
to be replaced.
• Motor is defective and needs to be
replaced.
• Check inverter and connections to the
motor.
5. If one rotating element
is stationary, check for a
broken shaft, bad bearing
or a loose or worn drive
sprocket.
• Replace as necessary.
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