Elevation System Not Functioning - Landice 8700 Series Service Manual

SYMPTOM
Elevation system not functioning or PO (Pot Out) error code displayed in the two digit
speed window.
7.1
Enter the DIAGNOSTIC MODE. (See pages 12, 13, or 14)
Does the elevation system work properly?
NO
7.2
Hold the UP button on the treadmill.
Is UPSW light on the relay board lit?
YES
1.Inspect the Creme wire (UP) and the Pink wire (DOWN) on both the 12 wire connector
on the relay board and the 14 wire connector on the upper display board for loose
connections or pushed pins.
2.If all harness connections are intact, then replace Upper Display Board.
Part# 70191-CL (Sprint), Part# 70173-CL (SST), Part# 70196-CL (PRG)
7.3
Hold the UP button on the treadmill.
Is the UP light on the relay board lit?
7.4
Do both the UP & DN lights
on the relay board light?
7.5
1. Inspect the Black wire (UP) and the Red wire (DOWN), on the 6 pin connector, for any loose
connections or pushed pins.
2. If all harness connections are intact then replace the Elevation Motor. Part# 70088
YES
Unplug 6 pin elevation motor connector from relay board.
Which button or direction seems to have the problem?
UP
NO
YES
Replace relay board.
YES
Part# 70213
Proceed with recalibrating
elevation potentiometer, page 8.
DOWN
Hold the DOWN button on the treadmill.
Is DNSW light on the relay board lit?
NO
Hold the DOWN button on the treadmill.
NO
Is the DN light on the relay board lit?
Do both the UP & DN lights
on the relay board light?
YES
NO
YES
YES
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