Troubleshooting - Crown EPXN-3 Installation & Operation Manual

Electric Counter Pan Steamers

Troubleshooting

General
PROBLEM
1. COOKING INDICATOR LIGHT FAILS TO
LIGHT WITH TIMER SET.
2. STEAM FAILS TO GENERATE WITH
COOKING INDICATOR LIGHT ON.
3. STEAMS CONTINUOUSLY WITHOUT
THE COOKING OR READY LIGHT ON .
4. TIMER DIAL NOT TURNING.
5. BUZZER FAILS TO SOUND AT END OF
TIMER SETTING.
Component Testing
60-MINUTE TIMER
Timer Contacts
Defective timer contacts will result in failure of cooker compartment to operate. When this occurs, remove the side panel
and proceed as follows:
1. Turn off power to the cooker at external circuit breaker.
2. Disconnect all three wires from timer terminals.
3. Connect an ohmmeter between terminals 1 and 3.
4. Rotate timer dial beyond the "0 - Minute" point (any setting) to obtain a reading of zero ohms on the ohmmeter. If zero
ohm reading cannot be obtained, timer contacts are defective and the timer must be replaced.
5. Move ohmmeter leads to terminals 1 and 4.
6. Rotate timer dial to "0 - Minute" position. (An audible click indicates correct position). If zero ohm reading cannot be
obtained, the timer is defective and must be replaced.
7. Remove ohmmeter and replace all three leads on timer terminals.
INSTALLATION & OPERATION MANUAL 10234 REV 0 (03/21)
PROBABLE CAUSE
a. Main power circuit breaker tripped.
b. Door interlock switch contacts not closed.
c. Door interlock switch faulty.
d. Indicator light burned out.
e. Faulty timer contacts.
f. Faulty wiring.
g. Fuse blown.
a. Faulty wiring.
a. Faulty thermostatic switch.
b. Power switch - continuous steam setting is
selected.
a. Faulty timer motor.
b. Faulty wiring.
a. Timer contacts faulty.
b. Buzzer faulty.
c. Faulty wiring.
T
ROUBLESHOOTING
REMEDY
Locate external circuit breaker for incoming
power and place in ON position.
Shut cooker door to close switch contacts.
Check alignment of door with switch.
Replace switch.
Replace light.
Replace timer.
Inspect condition of wire and tightness of all
connections. Correct as needed.
Replace with same rated fuse.
Inspect condition of wire and tightness of all
connections. Correct as needed.
Replace thermostat.
This is normal operation when "continuous
steam" is selected.
Replace timer.
Inspect condition of wire and tightness of all
connections. Correct as needed.
Replace timer.
Replace buzzer.
Inspect condition of wire and tightness of all
connections. Correct as needed.
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