CTX DZ33I, Owner'S Operating & Installation Manual

Page: 41 / 53

41
B. Chart 2- Troubleshooting
Symptom Probable Cause
Remedy
Display shows irregular or illegible
characters.

Could have been caused by
voltage spikes which caused
interruption to programming.

Could be caused by the display
is overheating.
1. Turn keypad to OFF and then
back ON.
2. Turn main circuit breakers on
electrical panel OFF and then
back ON. This will completely
restart program.
3. If display remains illegible, see
step 4.
4. Check to see filter is clean and
the cooling fan is running if not
call service.
Conveyor belt stops completely or
intermittently.

If belt time is 15 mins or
greater, belt will occasionally
stop. This is called belt
indexing and is not a
problem.

If belt time is set less than 15
mins check to see if drive
roller is turning.
1. Check to see if reset is tripped.
2. Check for objects jammed in
conveyor and remove.
3. Turn oven off, reset the
breaker, and turn oven on.
4. If motor still does not run, call
for Service.
Display does not show READY after
oven has been on for 20 min.

Oven has not reached set
temp, maybe caused by a
contact not closing or a failed
temp probe or element.
1. Check Set & Actual Temps for
all zones.
2. If actual temps are not
or - 6

F (-14

C) within 30 min
call for service.
Product is not cooking.

Check cook time and temp for
proper settings, conveyor
could be running too fast or
temp could be set wrong.

Display shows temp low or
zone(s) failed.

Check for possible air flow
through oven

Adjust cook time and temp to
correct settings.

Turn ON/OFF switch OFF then
flip main circuit breakers OFF
and ON 2 or 3 times.

Redirect air flow.