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24 American Dryer Corporation 450431-3
If the dryer is active (running) and the lint door is opened the
“LINT” L.E.D. indicator will go out and the display will read
“LINT dOOR.” The dryer will stop until the lint drawer has
been closed, at which time the L.E.D. display will read
“PRESS START.” At this time, to resume the drying cycle
press “ENTER/START” key.
“MAIN” (MAIN DOOR) Input L.E.D. Indicator
Should be on all the time (unless the lint door is open or the
main door is opened then the “MAIN” L.E.D. indicator will go
out).
If the dryer is active (running) and the main door is opened
the “MAIN” L.E.D. indicator will go out and the display will
read “MAIN dOOR.” The dryer will stop until the main door
has been closed, at which time the L.E.D. display will read
“PRESS START.” At this time, to resume the drying cycle
press “ENTER/START” key.
“DRUM” (TUMBLER HI-LIMIT) Input L.E.D. Indicator
Should be on at all times (unless the tumbler hi-limit switch
opens prior during the cycle while the heat was on the display
would read “dRUM Safety FAIL”). The machine will run with
no heat for 3 minutes or until the temperature drops below
100º F (38º C). Then the machine will shut down still
displaying “dRUM SAFETY FAIL” with an audio indication.
“SAIL” (SAIL SWITCH) Input L.E.D. Indicator
This routine will prevent start up on the machine unless the
sail switch is in the correct position. If the sail switch is in
the closed position prior to start, the “SAIL” output L.E.D.
indicator will be off, the machine will not start and the display
will read “SAIL SWITCH FAIL” along with an audio indication.
If the sail switch opens during the cycle the “SAIL” output
L.E.D. will go out and the display will read “NO AIRFLOW.”
The machine will run with no heat for 3 minutes or until the
temperature drops below 100º F (38º C). Then the machine
will shut down still displaying “NO AIRFLOW” along with an
audio indication.
“BURN” (BURN HI-LIMIT) Input L.E.D. Indicator
This routine monitors the temperature of the burner. If the
burner hi-limit opens during the cycle while the heat was on
the “BURN” output L.E.D. indicator goes out and the display
reads “bURNER SAFETY FAIL.” The machine will run with
no heat for 3 minutes or until the temperature drops below
100º F (38º C) then the machine will shut down still
displaying “bURNER SAFETY FAIL” with an audio indication.
“FLAME” (bURNER CONTROL FAIL) Input L.E.D. Indicator
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
microprocessor determines the ignition control has failed.
If this occurs when the cycle is active the “FLAME” output
L.E.D. indicator will go out and the display will read
“bURNER CONTROL FAIL.” The machine will run with no
heat for 3 minutes or until the temp drops below 100º F (38º
C). Then the machine will shut down still displaying
“bURNER CONTROL FAIL” with an audio indication.
“POWER SUPPLY” Input L.E.D. Indicator
Should be on at all times (even if the dryer is not running).
The power supply L.E.D. output indicator will not be on if the
power supply fuse to the Phase 6 OPL microprocessor is
not present. If the power supply fuse is faulty the L.E.D.
output will be off and there will be no display or keypad
function. The “FUSE,” “LINT,” and “DRUM” output L.E.D.
indicators will remain on.
Phase 7 OPL System Diagnostics ___
IMPORTANT: You must disconnect and lockout the
electric supply and the gas supply or the steam supply
before any covers or guards are removed from the
machine to allow access for cleaning, adjusting, installation,
or testing of any equipment per OSHA standards.
All major circuits, including door, microprocessor
temperature sensor, heat and motor circuits are monitored.
The Phase 7 OPL microprocessor controller (computer) will
inform the user, via the L.E.D. display of certain failure
messages, along with L.E.D. indicators on the Input/Output
board on the back panel of the front right control door.
Diagnostic (L.E.D. Display) Failure Codes
MAIN DOOR OPENED – A main door is open, when it should
be closed.
EXHAUST HIGH TEMP FAULT – Indicates the temperature in
the tumbler is above 220º F (104º C).
LINT ACCESS OPEN – Indicates the lint drawer is open and
needs to be closed.
EXHAUST HIGH LIMIT FAULT – Indicates the temperature
disk in the exhaust has opened.
SAIL SWITCH CLOSED FAULT – Sail switch is closed and
should be opened.
SAIL SWITCH OPEN FAULT – Sail switch is open and should
be closed.
BURNER HIGH LIMIT FAULT – Indicates the temperature disk
in the burner has opened.
BURNER IGNITION CONTROL FAULT – No signal to gas valve
from DSI module during trial for ignition time.
IGNITION FAULT – Gas valve did not remain open after trial
for ignition. Indicates that no flame was detected.
FLAME FAULT – Indicates flame was detected during trial
for ignition, but failed sometime after. This condition must
reoccur for five retries before fault occurs.
ROTATION FAULT – Indicates the tumbler is not rotating.
OPEN EXHAUST TEMPERATURE PROBE – Indicates the
exhaust temperature probe is open or shorted.
OPEN S.A.F.E. SYSTEM PROBE FAULT – Indicates the
temperature probe for the S.A.F.E. system is open or shorted.
LOW VOLTAGE FAULT – Indicates power has dropped below
the operating values and will shutdown.
BURNER PURGE FAULT – The gas valve signal is present
during the prepurge time.
MODEL ERROR, ENTER CORRECT MODEL – The wrong
model was selected for the dryer.
EE PROM FAULT ### – Error in memory location. The ###
indicates the location of the fault.