Proofer - Nu-Vu OP-2FM Owner's Manual

OP–2FM OWNER'S MANUAL
VIII. The Buzzer Alarm [16] does not sound:
A. Check the Oven Timer [24] for proper operation.
B. Make sure the Buzzer Alarm wiring is correct. One side of the Buzzer Alarm is connected to
terminal "6" on back of the Timer. The other side of the Buzzer is connected to any common or
group of common (WHITE) wires.
C. If all connections are correct, clean and tight and the Buzzer Alarm still does not operate, it
must be replaced (refer to BUZZER ALARM, How to Replace in the SERVICE AND
REPLACEMENT GUIDE).
IX. One or more Indicator Lights do not function:
An Indicator Light tells when a system or control is activated. Failure of the Indicator Light itself
will not affect the over-all operation of your unit.
A. Make sure all electrical connections to the Indicator Light are clean and tight.
B. Check the associated Control to see if it functions correctly. If the Control functions but the
Indicator Light does not light up the Light itself is bad and should be replaced (refer to
INDICATOR LIGHT, How to Replace in the SERVICE AND REPLACEMENT GUIDE).

PROOFER:

I. The Proofer Power Switch [31] is in the ON position but there are no lights,
heat, humidity or motor rotation:
A. The Power Switch may be tripped. Set it all the way to OFF, then reset it to ON.
B. Check the Fuses [19] below the Proofer Control Panel for a blown Fuse.
C. Check the main wall breaker or fuse box for a tripped power supply breaker or blown fuse.
D. Check the electrical connections to the Proofer Power Switch.
E. Check the voltage from the main breaker or fuse box to the Power Terminal Block and
compare it to the requirements listed on the equipment label.
F. Check the electrical connections from the main breaker or fuse box to the Power Terminal
Block (refer to Figure #2 on page 4). All connections must be clean and tight.
G. If all electrical connections and readings are correct as to voltage and phase the Proofer
Power Switch
SERVICE AND REPLACEMENT GUIDE).
II. The Proofer Power Switch [31] is in the ON position, you have lights, humidity
and Proofer Motor rotation but no heat:
A. Make sure the Proofer Temperature Control [32] is set past room temperature.
B. Check the Proofer Heating Elements [12] under the Proofer Element Cover [62]. They should
get hot to the touch when the Proofer Temperature Control is activated.
C. Check the electrical connections between the Power Terminal Block [1], the Power Switch,
the Proofer Temperature Control Circuit Board [8] and the Heating Elements. All connections
must be clean and tight.
D. Check the voltage from the Power Terminal Block to the Power Switch, the Temperature
Control Circuit Board and the Heating Elements. The voltage should match the requirements
listed on the equipment label. If voltage is present at the Heating Elements one or more of the
Elements may be burned out. If voltage is present at the input side of the Temperature Control
Circuit Board [8] but not at the output side the Control Circuit Board or its Control Sensor [9]
may be bad.
E. Check the Temperature Control against a reliable thermometer. Place the thermometer on a
Shelf in the center of the Proofer, turn the Humidity Control [34] to OFF, and set the
Temperature Control to 100 . Compare the thermometer reading against the Temperature
Control setting when the Temperature Control Indicator Light [33] goes out. If there is more
than 10 difference the Temperature Control may need a simple adjustment (refer to
TEMPERATURE CONTROL, How to Adjust in the SERVICE AND REPLACEMENT
GUIDE).
NU–VU® FOOD SERVICE SYSTEMS
(800) 338-9886
must be replaced (refer to POWER SWITCH, How to Replace in the
PO BOX 35
SALES FAX (906) 863-5889 • SERVICE FAX (906) 863-6322
TROUBLE–SHOOTING GUIDE
MENOMINEE, MICHIGAN 49858-0035
page 21