ProForm 725c English Manual - Page 18
Conditioning, Guidelines
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c. Error code "E4" may appear in the SPEED display if the walking belt is moving at a slow speed, and there is excessive stress on the motor. Remove the key, wait for ten seconds, and then reinsert it. If you weigh over 200 pounds, it may be helpful to increase the incline of the treadmill. If the error code appears again, call our toll-free Customer Service Department. Do not operate the treadmill until the problem is corrected. d. Error code "E5" may appear in the PULSE display if a pulse error occurs. See HOW TO USE THE PULSE SENSOR on page 7, and PULSE DISPLAY on page 11. 5. SYMPTOM: THE PULSE SENSOR DOES NOT FUNCTION PROPERLY a. See HOW TO USE THE PULSE SENSOR on page 7, and PULSE DISPLAY on page 11. 6. SYMPTOM: THE WALKING BELT IS OFF-CENTER WHEN WALKED ON a. If the walking belt has shifted to the left, first remove the key and UNPLUG THE POWER CORD. Using the alien wrench, turn the left rear roller adjustment bolt clockwise 1/4 of a turn. Plug in the power cord, insert the key and run the treadmill for a few minutes. Repeat until the walking belt is centered. b. If the walking belt has shifted to the right, first remove the key and UNPLUG THE POWER CORD. Using the alien wrench, turn the left rear roller adjustment bolt counterclockwise 1/4 of a turn. Plug in the power cord, insert the key and run the treadmill for a few minutes. Repeat until the walking belt is centered. CONDITIONING GUIDELINES . .......... dividuais'over>the