Carter-Hoffmann CNH18LP User Manual

Page 9

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9

TROUBLESHOOTING GUIDE

SYMPTOM

POSSIBLE CAUSE

SUGGESTED REMEDY

No power to unit

Not plugged in or circuit breaker
tripped

Check or reset circuit breaker
Connect to proper receptacle

Power cord damaged

Check - replace if required

Power switch damaged or defective

Check - replace if required

Food dries out too
quickly

Operation where product temp is too
high

Check product temps going into hold-
ing cabinet

Thermostat incorrectly set or defective Check proper operation or calibration

of thermostat

Unit is on, motors
are running but no
heat

Internal wiring error

Call service technician

Element hi-limit trip /defective

Call service technician

Takes too long to
get to temperature

Improper voltage

Call service technician to verify in-
coming voltage matches cabinet
specifications.

Unit is hot
but low or no airflow

Internal wiring error

Call service technician

Circulation motor has quit

Call service technician

Improper voltage

Call service technician to verify in-
coming voltage matches cabinet
specifications.

NOTE:

The technical content of this manual,
including any wiring diagrams, schemat-
ics, parts breakdown illustrations and /
or adjustment procedures, is intended
for use ONLY by qualified technical
personnel

.

NOTE:

For warranty service, call Carter-Hoffmann
direct at 800-323-9793 for authorization,
we will dispatch the nearest authorized
service agency.

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