Vision fitness treadmill T9300 - T9350 - T9700 – Error codes – Troubleshooting

DATA CABLE CONNECTION DETAILS 
Large Data Cable
The large data cable carries the communication between the lower board and the upper board. The large data cable has 8 pins (wires).
# 1 PWM
# 1 RPM/Sensor
# 1 Down Elevation
# 1 Up Elevation
# 1 Vcc (+5)
# 2 Grounds
# 1 Elevation Potentiometer signal

Small Data Cable
The small data cable carries power (11 volts) from the lower board to the upper board. This is the only function for the small data cable. The small data cable has 6 pins (wires).
# 3 Power
# 3 Grounds
Always make sure your 11V or CNS LED is lit on the lower board. The 11V or CNS LED is indication that the lower board is sending power to the small data cable.

Have a spare set of data cables at all times: Damaged or defective data cables are the cause of treadmill failure. DATA CABLE DAMAGE IS NOT ALWAYS VISIBLE.
To properly test data cable:
1. Connect new data cable to the upper board.
2. Connect data cable to the lower board without pulling through mast.
3. Test the treadmill.

DEFECTIVE DATA CABLE SYMPTOMS
Large Data Cable Defective Symptoms
1. E2 (T9200 & T9250 ONLY)
2. E5
3. E6
4. E9
5. No Elevation or speed function.
6. No Elevation.
7. No Speed.
8. Deck goes to max at start.
9. Run away speed.

Small Data Cable Defective symptoms
1. No power to the upper board.
2. Loss of power to the upper board, intermittent shutdown.

To troubleshoot a bad large data cable for most models - Enter engineering mode.If the elevation window in calibrations reads 000 in Px there no signal from the lower board to the upper console.

ERROR MESSAGES
NOVRAM - DGA3J:

Px values "Init"(flashes on board and beeps) on power up. Px values stored in NOVRAM are outside valid ranges or the checksum is invalid. The system checks for a valid P6 configuration. It writes the default values with respect to P6, if valid. If not, it writes default values to the NOVRAM based on a "4" (T9350) configuration. No user interface necessary - occurs on power up. P6 value may need to be recalibrated depending on model: This console will reconfigure itself for a T9350.
NOVRAM - DGA3J:

User program values "UCLr" (flashes on board and beeps) on power up. Time, speed, and elevation values stored in NOVRAM are outside valid ranges or the checksum is invalid. The system clears the user program values. No user interface necessary - occurs on power up. If "init" occurs, "UCLr" also occurs afterwards, but not vice versa. 

NOVRAM - DGB1J:

Same NOVRAM error as the DGA3J except the treadmill will reconfigure itself for a T9600HRT. P6 value may need to be recalibrated depending on the model: NOVRAM - DGB1J: Same NOVRAM error as the DGA3J

ERROR MESSAGE CODES
If an error occurs during auto-calibration of new console, an over-ride of the error may be necessary. On the speed key numeric press “5”, “9”, then “3”. Cycling the power may be necessary.
E2 T9200 & T9250 only. E2 is the only error programmed into the software. There are no E2 errors for T9300 through T9300 treadmills.
E4 Incline position is outside the tolerances
E5 Elevation stall condition
E6 Signal from elevation is lost
E7 Belt is accelerating too fast
E9 Signal from speed sensor is lost

ERROR E2: 

E2 is the only error message programmed into the software for the T9200 and T9250. Troubleshooting an E2 on the T9200 and T9250 can be difficult. Use information provided in all the Error Solutions for assistance in pin pointing the problem.
1. If the elevation motor is jammed. (Humming and too warm)
# Remove elevation motor tube from elevation rack
# Unjam or replace elevation motor
# Check all connections
# Test/change large data cable (use large data cable information provided in the data cable portion of this guide)
# Make sure the tube end of the elevation motor is in the correct location on the worm gear
# Make sure the P4 value in calibrations is correct before reinstalling the tube end of the elevation motor to the elevation rack
# Auto-Calibrate the treadmill.

ERROR E4
1. Check power to the treadmill, as insufficient voltage to the treadmill can cause this error to reoccur. Check the power socket that the tread is plugged into. Eliminate any extension cords or surge protectors (plug the tread directly into a functional power source). Make sure the circuit is not overloaded. Make sure the circuit is NON-GFI.
2. Calibrate (See engineering mode for specific treadmill).
3. If calibrations do not hold, replace upper console.
ERROR E5
1. Check large data cable connections at the lower and upper boards
2. Check the elevation plug connection at the lower board.
3. Calibrate (See engineering mode for specific treadmill).
a)If dashes appear and it says DGA3 in profile reboot treadmill.
Reboot treadmill.
Turn tread on.
Remove safety magnet.
Turn tread off.
After 15 seconds turn tread on.
Place safety magnet in the console.
Or:
Turn power off.
Remove Safety key.
Unplug treadmill.
After 15 seconds plug tread in.
Turn tread on.
Place safety magnet in the console.
b)If console enters engineering check the calibrations of P4 and P5.
4. Test/change large data cable (use large data cable information provided in the data cable portion of this Guide)
5. Replace lower board.
6. Replace elevation motor.

ERROR E6
1. Check the elevation plug connection at the lower board.
2. Check ALL large data cable connection at the lower and upper boards.
3. Calibrate the treadmill.
4. Test/change large data cable (use large data cable information provided in the data cable portion of this Guide).
5. Replace elevation motor.
ERROR E7/E9
1. Certain lower boards have an LED that flashes when the magnet on the roller passes the sensor. Adjust sensor position if LED does not flash.
2. Unplug RPM sensor at the lower board. Check continuity. Treadmill will operate without sensor but cannot Autocalibrate. Calibrate manually.
3. Replace RPM sensor.

TREADMILL TRIPS THE CIRCUIT BREAKER ON POWER UP

1. Check all connections at the switch, power cord, breaker and the lower board, replace Power Cord and Leads
2. Check running belt and deck for proper wax
3. Replace breaker
4. Replace lower board

TREADMILL RUNNING BELT SURGES

1. Check the power socket that the tread is plugged into. Eliminate any extension cords or surge protectors (plug the tread directly into a functional power source). Make sure the circuit is not overloaded.
2. Adjust IR comp on the lower board.
3. Adjust running belt to proper tension.
4. Adjust drive belt to the proper tension.
5. Check front roller pulley for slippage.
6. Check motor brushes
7. Replace lower board.
8. Replace drive motor.

TREADMILL DRIVE MOTOR STALLS
1. Wax running deck.
2. Check running belt and deck for debris.
3. Check drive motor leads at the lower board. If the lead look abnormal replace the motor and the lower board.
4. Check LED's on the lower board.
5. Test/change large data cable.
6. Replace the lower board.
7. Replace drive motor.

ELEVATION PROBLEMS

1. Check data cable connections at the lower and the upper boards.
2. Calibrate.
3. Check that the Up Elevation LED on lower board lights when the Up key is pressed and the Down Elevation LED lights when the Down key is pressed.
4. Test/change large data cable .
5. Replace touch pad .
6. Replace lower board.
7. Replace elevation motor.

NOISE PROBLEMS

1. Make sure that the machine is properly leveled.
2. Check wax build up on the front and rear rollers, scrape off excessive wax.
3. Loosen the rear roller adjustment bolts and retention the running belt (if the running belt is over-tightened it will put an excessive load on the roller bearings).
4. Check drive (front) roller pulley.
5. Check deck bolts.
6. Lubricate pivot points.
7. Replace roller.