22 American Dryer Corporation 450412-4
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) Fault Messages
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 5 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.