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SECTION XI
PHASE 6 OPL SYSTEM DIAGNOSTICS
IMPORTANT: YOU MUST DISCONNECT AND LOCKOUT ELECTRIC, GAS, OR
STEAM SUPPLY BEFORE ANY COVERS OR GUARDS ARE REMOVED
FROM THE DRYER TO ALLOW ACCESS FOR CLEANING, ADJUSTING,
INSTALLATION, OR TESTING OF ANY EQUIPMENT PER OSHA
(Occupational Safety and Health Administration)
STANDARDS.
ALL
major circuits, including door, microprocessor temperature sensor, heat and motor circuits are monitored.
The Phase 6 OPL microprocessor controller (computer) will inform the user, via the light emitting diode (L.E.D.)
display of certain failure codes, along with indicators both in L.E.D. display and at the output of each relay (and
door switch circuit) to easily identify failures.
A. DIAGNOSTIC (L.E.D. DISPLAY) FAILURE CODES
1.
SAIL SWITCH FAIL
- this routine will prevent start up on the dryer unless the sail switch is in the correct
position. If the sail switch is closed prior to start up the display will read “SAIL SWITCH FAIL” along with an
audio indication.
2.
No AIRFLOW
- if the sail switch opens during cycle operation the display will read “NO AIRFLOW” along
with an audio indication. The dryer will continue to run with no heat for 3 minutes or until the temperature
drops below 100º F. Upon failure the dryer will shut down and display “No AIRFLOW” with an audio
indication.
3.
bURNER SAFETY FAIL
- routine monitors the temperature above the burner. If the Burner Hi-Limit switch
opens the display will read “bURNER SAFETY FAIL.” The dryer will run with no heat for 3 minutes or until
the temperature drops below 100º F. Upon failure the dryer will shut down and display “bURNER SAFETY
FAIL” with an audio indication.
4.
dRUM SAFETY FAIL
- this routine monitors the basket (tumbler) temperature if the basket (tumbler) Hi-Limit
switch opens prior or during the cycle while the heat was on the dryer will display “dRUM SAFETY FAIL.”
The dryer will continue to run with no heat for 3 minutes or until the temperature drops below 100º F. Upon
failure the dryer will shut down and display “dRUM SAFETY FAIL” with an audio indication.
5.
NoHEAT
- this routine monitors the gas valve response. If the valve output is discontinued by the ignition
control while the heat output cycle is active the dryer will display “NoHEAT” the dryer will run with no heat for
3 minutes or until the temperature drops below 100º F. If the basket (tumbler) temperature is below 100º F
upon failure the dryer will shut down and display “NoHEAT” with an audio indication.
6.
bURNER CONTRL FAIL
- this routine monitors the ignition control’s gas valve output response. If the valve
output signal is not present from the ignition control within the valve time limits the Phase 6 microprocessor
controller (computer) determines the ignition control has failed. If this occurs when the cycle is active the
dryer will display “bURNER CONTRL FAIL.” If the basket (tumbler) temperature is above 100º F the dryer
will continue to display “bURNER CONTRL FAIL.” The dryer will run with no heat for 3 minutes or until the
temperature drops below 100º F. If the basket (tumbler) temperature is below 100º F upon failure the dryer
will shut down and display “bURNER CONTROL FAIL” with an audio indication.
