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Viper Service Manual
Publication Number: 621360041TBSER - 64 - © 2010, IMI Cornelius Inc.
TROUBLESHOOTING
TROUBLESHOOTING THE SYSTEM
Problem Probable Cause Remedy
Unit will not run. A. Unit not plugged in.
B. Circuit breaker.
C. No power at L1 or L2 on contac-
tor.
D. Low voltage at T1 or T2.
A. Plug in unit.
B. Reset/replace circuit breaker
C. Check voltage at outlet.
Check wiring to contactor.
D. Replace the contactor.
“Sleep” display on bar-
rel status menu.
A. Sleep time set.
B. Clock incorrectly set.
C. No wake time set.
A. Check sleep programming.
B. Check sleep programming.
C. Check sleep programming.
Barrel status OFF. A. Not activated.
B. Error has shut off motors.
C. Unit in Diagnostics.
D. Defective touch switch.
A. Turn to ON, DFRST or SPIN.
B. Correct error & turn to ON,
DFRST or SPIN.
C. Exit diagnostics & turn to ON,
DFRST or SPIN.
D. Replace.
Low/High voltage
ERROR.
A. Line Voltage out of SPEC (spec is
205-255 VAC for 60 Hz and 196-
265 VAC for 50 Hz).
B. Error range 180/260.
A. 1 - Check line voltage.
2 - Check T1/T2 with Compressor
running.
B. Correct line voltage.
Frozen Barrel A. Low Brix
B. Broken beater bar
C. Broken drive coupler.
D. No defrost.
E. Are defrosts programmed all
days?
A. Correct cause and reset Brix.
B. Replace beater bar.
C. Replace the drive coupler.
D. Program defrosts in unit.
E. Reprogram to all days.