Cornelius QUANTUM SERIES - Manual (Page 13)

Quantum Series Installation and Service Manual
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TROUBLE-SHOOTING
GUIDE
The following pages contain trouble-shooting charts designed to aid an experienced serviceman in
diagnosing any operating problems that may be experienced. In order to gain maximum benefit
from the charts, please note:
1. Start at the beginning of the chart and supply the appropriate answer to each question.
2. Do not skip any section, unless instructed to do so. You may miss the solution to your prob-
lem.
3. Evaluate the possible problem causes in the sequence in which they are presented. In gen-
eral, they began with the most likely and/or easiest to check, and proceed to the less likely
and/or more complicated.
4. If, after checking all indicated causes, the problem is not resolved, it is recommended that you
try a second time. Evaluate symptoms carefully and modify your answers as necessary.
5. If you are unable to resolve a problem after several attempts, contact customer service de-
partment at (1-800-238-3600) for assistance.
PROBLEM PROBABLE CAUSE REMEDY
Totally Inoperative No power to dispenser due
to tripped circuit
breaker.
Reset circuit breaker. Confirm that
breaker is correct size and no
other equipment is operating on
the same circuit. Also confirm
that supply voltage is +10% of
nameplate specifications.
Loose or broken power sup-
ply connection inside
dispenser.
Repair connection
No cooling Line voltage is not within
+10% of nameplate
specifications causing
compressor overload to
trip
Contact an electrician
Both thermostats in OFF
position
Turn ON thermostats and recali-
brate the temperatures to 34
o
F
-40
o
F (1.1
o
C –4.5
o
C).
Defective compressor over-
load or start capacitor
Replace