Troubleshooting; Outputs Tests; Temperature Calibration; Physical Specifications - Henny Penny HC-903 Service Manual

NOTE: The Tech Mode is mostly for use
at the factory level. The output tests and
temperature probe calibration is given
below. For further information on the
other features, call the Service Depart-
ment at Henny Penny Corp.
To enter the Tech Mode:
1. Depress and hold the Program button
for at least 4 seconds. Setup and Tech
will show in the display.
2. Depress the timer button under the
word Tech. Ex: "Tech", depress either
4 or 5.
3. Enter the access code 1-1-2-2-1-1-2-2.
"Output test Htr" will show in the dis-
play.

Outputs Tests

Depress the number 5 timer button (under
"Htr") to toggle the heat output and the heat
LED on and off.
Depress and release the Program button to
move to the next step, or depress and hold
the Program button to exit the Tech Mode.
Operation
PROBLEM
Product not holding
temperature
Error message E06.
PROBABLE CAUSE
Doors are left open.
Temperature set too low.
Door gasket torn or worn.
Heater not working.
Blower not working.
Product held too long.
Low or improper voltage
Faulty temperature probe .

Temperature Calibration

After the code has been entered in the Tech
Mode, depress and release the Program button
3 times, "CAL OFS Hi Probe 185
display. Depress and hold the number 1 timer
button under "CAL", while depressing the
Increase or Decrease buttons. This enables
the operator to set the display to match the
actual cabinet temperature.
Depress and release the Program button to
move to the next step or depress and hold the
Program button to exit the Tech Mode.

Physical Specifications

• 24 3/4" wide x 31 3/4" deep x 37" high (63 x
81 x 97 cm). Model HC-903 with 5 count
down timers
• Accepts 18" x 26" (46 x 66 cm) bun pans and
grids
• Shipping weight - 200 lbs. (90.8 kg.)

TROUBLESHOOTING

CAUTION: Refer to maintenance proce-
dures in the Non-Scheduled Maintenance
section to check and repair the unit safely
and properly.
CORRECTIVE ACTION
Keep doors closed except to load and
and serve product.
Increase the temperature by depressing
the Program button, enter 1-2-3, and
use the Increase or decrease buttons.
Replace gasket.
Check heater and replace if necessary.
Check blower and replace if necessary.
Hold product only for recommended
time.
Using a meter, compare receptacle
voltage to data plate voltage.
Replace temperature probe.
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