Dyaco AT90E, Service Manual

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8.6 Troubles hooting procedure matrix
Condition Reason Solve
When turn on power, ON/OFF switch isn’t lit. 1 Power cord isn’t plugged into outlet.
2 Power cord isn’t plug into unit.
3 The voltage of outlet is too low.
4 Plug or connector of power cord is open.
5 Connector of power cord is broken.
6 Connecting cable disconnected.
7 Breaker tripped.
8 Breaker is broken.
9 ON/OFF switch is broken.
1 Plug the power cord into outlet.
2 Plug the power cord into unit.
3 Check the voltage of outlet.
4 Replace power cord.
5 Replace power cord.
6 Check if wire is disconnected, connect it again.
7 Press the small red button to return to original status.
8 Replace breaker.
9 Replace AC switch.
After turning on power, treadmill has a popping sound. 1 Incorrect input power, varistor is blown
broken on controller.
1 Check the voltage of power is 120V. Replace controller.
When insert safe key, no display on monitor.
1 Haven’t switch ON/OFF switch.
2 Insert the Safe key on wrong position.
3 10 PIN Computer connector not plugged
in properly.
4 10 PIN computer cable is broken.
5 Fuse on controller is blown.
6 Varistor on controller is blown.
7 Safety device is broken. (open)
8 Other components are faulty.
1 Switch the AC switch.
2 Insert the safe key on right position.
3 Please check the wire and connect again.
4 Replace 5 PIN computer cable.
5 Replace fuse or controller.
6 Replace varistor or controller.
7 Replace safety key device.
8 Replace console.
With no safe key but treadmill could display or operate 1 Safety device is broken. (short) 1 Replace the safety key device or console.
When press “START”, treadmill doesn’t start. 1 Motor M+ or M- wire isn’t connected into
right position.
2 Motor is broken.
1 Please check and plug again.
2 Replace motor or check the wire and connector if it was
broken.
3 Turn off the AC switch and turn on power again.
Treadmill stops or shuts off by itself. 1 House breaker tripped.
2 Treadmill breaker tripped.
3 Treadmill controller fuse is broken.
4 Treadmill controller shut down and LED
would be ON.
1. Reset it.
2. Reset treadmill breaker.
3. Replace with new fuse
4. Turn off the AC switch and turn on power again.
After removing safe key, treadmill can’t stop. 1. The safety key device is broken. 1. Replace with new safety key device.
LCDs not bright, incomplete or imperfect. 1. LCD light is broken.
2. Power to console too low. 1. Replace with new LCD or console.
2. Check AC power is 120V.
3. Check power to console.
4.Replace lower controller.
LCD displays not bright, incomplete or imperfect. 1. LCD displays are broken. 1. Replace with new console.