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FIELD SERVICE MODE ENTRY
From an idle state only (all LEDs off), press
and hold Start button while rotating the cycle
selection knob 180 degrees (7 clicks) and
then release the Start button.
• Once service mode is entered all LEDs will
be flashing.
– On 7-segment display models: (0) will be
displayed for Test (0).
– On models without a 7-segment display: All
of the status LEDs above the cycle knob will
be lit.
• The cycle selection Knob is now used to
control the test selection menu.
– Rotating the knob clockwise will
increment the test numbers in the
display.
– Rotating the knob counter clockwise will
decrement the test number in the display.
– Models without 7-segment display: Will
display tests using the status lights above the
cycle knob in a binary format. (See Binary
Chart)
– Turning the knob to go to a different test will
terminate any current active state.
• Once the test number is selected, pressing Start
will begin the selected test.
Exit Field Service Mode
• Field service mode will time out after 30 minutes
if there is no user activity.
• Models without 7-segment display: Press and
hold the Start button for 3 seconds
• Models with a 7-segment display: Press Power
button
SERVICE MODE TEST 17-
Change Personality
Pressing Start will start the test. Press Start
button again and the next valid personality should
be displayed. Press and hold the Start button to
select the correct personality. The control will go to
an idle state. All LED's off.
Note: If the personality ID is already set and you
try to set the same personality the control will
NOT go to an idle state. Ensure the correct
personality ID is being entered.
Note: Upon entering test 17 for models,
GTW220**K0, K1 and K2,
HTW240**K0 and K1, and also HTW200**K3
and higher
the cycle status LED's will not be lit for
personality "0".
3
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