Troubleshooting Guide; No Power To Treadmill - Life Fitness 97Ti Service Manual

Life Fitness Model 97Ti, 95Ti, 93T, 97Te, and 95Te Treadmills

TROUBLESHOOTING GUIDE

NO POWER TO TREADMILL

In order to diagnose NO POWER to Treadmill, the Motor Cover must be removed, and the Treadmill must be
plugged into an electrical outlet. Use the following TROUBLESHOOTING CHART to take the proper corrective
action for NO POWER TO TREADMILL. In conjunction with this Chart, refer to the next page to reference Test
Points (TP1 through TP5) on the Electrical Schematic.
STEPS INSPECT
1 Line Cord Voltage
2 Power Switch
3 Line Filter
4 Circuit Breaker
5 Motor Controller
6 Auto Transformer
and Wax/Lift
Board
ACTION
Remove the Line Cord Bracket, unplug
the Line Cord from Treadmill, and then
test for Line Voltage.
Turn the Unit Power Switch ON, and test
for Line Voltage at TP1.
Turn the Unit Power Switch ON, and test
for Line Voltage at TP2.
Turn the Unit Power Switch ON, and test
for Line Voltage at TP3.
Turn the Unit Power Switch ON, and test
for Line Voltage at the Motor Controller
Cable at TP5.
Turn the Unit Power Switch ON, and test
for 120v AC at the Wax/Lift Board Cable
at TP4.
NO LEDs are lit on the Wax/Lift Board.
Fuse No. 1 is blown.
Fuses No. 2 or 3 are blown.
RESULTS
If Line Voltage is present, then continue on to Step 2.
If Line Voltage is not present, then test for Voltage at
wall outlet. If no voltage is present, then check the
Main Service Breaker at the Facility. If wall outlet
voltage is present, then replace the Line Cord.
If Line Voltage is present, then continue on to Step 3.
If Line Voltage is not present, then replace Power
Switch.
If Line Voltage is present, then continue on to Step 4.
If Line Voltage is not present, then replace the Line
Filter.
If Line Voltage is present, then continue on to Step 5.
If the Line Voltage is not present, then reset the
Circuit Breaker, or if necessary replace it.
If Line Voltage is present and NO LEDs are lit then
check to see if the Motor Cable is unplugged or
damaged, and replace as necessary.
If Line Voltage is present and NO LEDs are lit, then
check to see if the Motor is overheated or is
damaged. With the Motor unplugged, OHM out the
two blue wires using a Multi-Meter. If there is NO
Continuity, then replace Motor. If NO Line Voltage is
present, then check Cables between the Power Box
and Motor Controller, and replace as necessary.
Check for damaged cables and replace. If the cables
are not damaged, replace the Auto Transformer.
Remove the Wax/Lift Board from the Treadmill.
Check fuses 1, 2, and 3, with the Multi-Meter set on
resistance. If the fuses are good, then test the power
cable from the Power Box to the Wax/Lift Board for
120 Volts.
If fuses are shorted out, then replace the Wax/Lift
PCB.
Inspect the Wax/Lift Board for any signs of damage.
If damaged, replace the Wax/Lift Board.
Inspect cabling from the Wax/Lift Board to: Frame
Tag, Motor Controller, Frame Switch, and Lift Motor
Home Switch. If cabling is damaged, then replace as
necessary.
Check for a shorted wire at the Lift Motor. The
resistance is checked at the: Black to Red wire, which
should read about 30 OHMS; the White to Red wire
should read 15 OHMS, and the White to Black wire
should also read 15 OHMS. If any of these wires
register '0 OHMS', then replace the Lift Motor.
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