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6300/6310 Treadmill Electronics Repair Manual – Heart Rate
Possible Malfunctions
1. Strap on a Polar heart rate transmitter or hold onto the HTR handlebar. The display PULSE window shows
no heart rate value.
2. The PULSE window shows the heart rate value inappropriately – when no one touches the HTR handlebar
or when no one wears the Polar strap.
3. Place hands on the HTR handlebar or wear the Polar strap. The display PULSE window value differs
greatly from the user’s actual heart rate.
Troubleshooting
Malfunction Cause Inspect
LED1
(POLAR)
not flashing
POLAR receiver is not detecting a heart rate or the
signal is not getting to the HTR board.
POLAR transmitter, POLAR receiver board,
wires
LED2 (HTR)
not lighting
HTR handlebar is not being held or there is no
detection of a signal at the HTR board.
HTR handlebar, wire from HTR board to
handlebar (See HR.05.)
LED3 (HTR)
not flashing
Signal is not arriving from HTR handlebars. HTR handlebar, cable, HR board (See HR.05.)
LED4
(HTR+POLAR)
not flashing
POLAR receiver or HTR is not emitting a heart rate
signal to the display.
If all other HTR board LEDs are normal, replace
the HTR board.
Display Shows
No HR Value
If HTR board LEDs are normal, inspect the 3-pin
cable, its connections, and the display board.
3-pin cable, connections, display board
HR.04