Carter-Hoffmann CW4 User Manual
Page 14

14
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
Product dries out too 
quickly 
Operation where product temp is too high
Check product temps going into holding 
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 specifi-
cations. 
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 specifi-
cations. 
 
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. 
