Dexter Laundry T-900 Operator's Manual page 32
Industrial washer model t-900/950 on-premise n-series control
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Also See for T-900:
- Parts & service manual (154 pages) ,
- Operators manual installation & operation instructions (340 pages) ,
- Service procedures and parts data (110 pages)
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until the display reads "31".
3.5.4 Press "START".
All lights will be on and "00" will be in the display.
From this point, the operator must observe the functions of the washer
with the washer top panel removed to ensure correct operation. Each
step in this test will turn on an output on the I/O interface assembly, and
the corresponding red LED on the I/O interface assembly will light. The
outputs are clearly marked.
3.5.5 Press the "UP" button.
The display will show "01".
For each number in the test, the function will be active when the "START"
button is pressed and will be inactive when the "START" button is
released. Press the "UP" button to move from one function to the next.
The sequence of operation for the diagnostic cycle is explained below:
Step 01: Door Lock Mechanism (Door Sol. #3 red LED and Green
input LEDs #4 and #5 will be lit.)
Step 02: Door Locking Thermoactuator (Lock Thermo #2 red LED
will be lit.)
Step 03: Door Unlocking Thermoactuator (Unlock Thermo #1 red
LED will be lit.)
Step 04: Close Drain Valve (Drain Valve #4 red LED will be lit.)
Step 05: Cold Water Valve for the tub (Cold Tub #7 red LED will be
lit.) The pressure switch low level setting can be tested at this point. The
drain valve is closed and cold water is on for as long as the "START"
button is pressed. When the water level reaches a low level, the water
valve will turn off and no additional cold water can be added. Green input
LED #13 should now be lit.
Step 06: Cold Water Valve for the dispenser (Cold Dispenser #6 red
LED will be lit.) For models with electric heat only, this provides power to
the heat relay, however the heat relay will not energize due to low level
safety relay. The pressure switch low level setting can also be tested with
this step. See Step 05 for additional details.
Step 07: Hot Water Valve for the tub (Hot Tub #5 red LED will be lit.)
The pressure switch high level setting can be tested at this point. The
drain valve is closed and hot water on for as long as the "START" button is
pressed. When the water level reaches a high level, the water valve will
turn off and no additional hot water can be added. Green input LED #15
should now be lit.
Step 08: Hot Water Valve for the dispenser (Hot Dispenser #8 red
LED will be lit.) The pressure switch high level setting can also be tested
with this step. See Step 07 for additional details.
Step 09: Tumble clockwise (FWD. #13 red LED will be lit)
8514-244-001 REV PR page 32
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