Tt30 is stuck at 3% incline and will not speed up or slow down. It also beeps continually and displays SB for about 5 seconds when first turned on. I tried the recalibration procedure and it does not work.

Depends on model. Generic advice in the link and videos. You can effect a power reset by pulling that wall plug for 30 minutes.

Sabbath Mode is turned ON and OFF by pressing
and holding both the freezer "? Down" and refrigerator "? Up"
indicators for five (5) seconds. The display shows "Sb"
while in Sabbath mode


https://www.google.com/search?q=how+to+turn+off+sabbath+mode+on+frigidaire+refrigerator

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A power reset is the only help given. One article suggests a factory reset for 3 or 4 beeps.

Customer Support bottom of the page.

https://www.proform.com/treadmills/650-lt

https://www.google.com/search?q=Proform+650+LT+5+beeps

..

1.Start by turning the unit on.
2.For a treadmill, step on the side rails and insert the safety key.
3.For a treadmill press and hold at the same time, the INCLINE UP and SPEED DOWN arrow buttons for 3-5 seconds. The console will beep and begin to scroll SELECT ENG MODE. At this point you can release the buttons.
4.For the switch function mode on a treadmill, press the INCLINE UP arrow button to take you to ENG3.
5.Press the ENTER button.
6.Now press the START button, the display will change between Miles and KM (Kilometers).
7.Once it is displaying the desired output, press and hold the STOP button for 3-5 seconds to exit. The console will beep and begin to scroll SELECT ENG MODE. At this point you can release the button.
8.Finally, press and hold the STOP button again to exit Engineering Mode. The console will beep and return to the main screen. At this point you can release the button.

To display memorized error (Protective operation)
status:
1. Turn power on.
2. Press the CHECK button on the remote controller
continuously for 5 seconds.
3. "- -" will be displayed on the remote controller display.
Note: Display only for "- -". (No transmitting signal, no
receiving sound and no Power LED blinking.)
4. Press the "TIMER" or button on the remote
controller. The code "H00" (no abnormality) will be
displayed and signal will be transmitted to the main
unit. The power LED lights up. If no abnormality is
stored in the memory, three beeps sound will be
heard.
5. Every press of the button (up or down) will increase
abnormality numbers and transmit abnormality code
signal to the main unit.
6. When the latest abnormality code on the main unit
and code transmitted from the remote controller are
matched, power LED will light up for 30 seconds and
a beep sound (continuously for 4 seconds) will be
heard. If no codes are matched, power LED will light
up for 0.5 seconds and no sound will be heard. 7. The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5
seconds or operating the unit for 30 seconds. 8. The same diagnosis can be repeated by turning
power on again.
• To clear memorized error (Protective operation) status after repair:1. Turn power on.
2. Press the AUTO button for 5 seconds (A beep
receiving sound) on the main unit to operate the unit
at Forced Cooling Operation mode.
3. Press the CHECK button on the remote controller for
about 1 second with a pointed object to transmit
signal to main unit. A beep sound is heard from main
unit and the data is cleared.
• Temporary Operation (Depending on breakdown status)
1. Press the AUTO button (A beep receiving sound) on
the main unit to operate the unit. (Remote control will
become possible.)
2. The unit can temporarily be used until repaired

Oil Light Reset Procedure
Turn the treadmill off using the safety key.
While treadmill is off, press and hold Speed Up & Speed Down for 3 seconds, continue to hold them while you turn the safety key to the on position.
After the treadmill display turns on you will see a 1 in the bottom corner, you can release the Speed Up & Down buttons.
Use Incline Up to change the 1 to a 3.
Press Start to enter menu.
Press Speed Down to reset distance counter, press enter to save, press enter again to exit menu.

1) Lube the machine see the video and use the common sense, this happen because the lack of maintenancae according with the instr. manual. Shut down the machine for to protect the electronic system.

2) Lube the rollers bearing too, very well.

3) Test the input voltage motor, if there are the motor NEED repair.

4) Test the output voltage board, for input voltage motor, if there are NOT the board is faulty. see the block diagram.

God bless you

CPU dead. Have to change it.

1) Test the Speed sensor and adjust the same as intructed in your owner manual 2) Plugin very well the connector and clean. 3)exchange batteries by new one in the display board 4) tight the flexible cord from keypanel vs display board 5) tight the connector from display board vs lower board very well. 6)Now test the main motor if is faulty ( short winding) 7) main motor controllber board is faulty ( test the 115VAC + 5VDc for por supply input coming 8) Power transforner maybe faulty.
See the block diagramm that i Did FOR you kno how the main motor board has aprox 90% of functions of any treadmills. Now you will have strong DIAGNOSTIC, for to measurement the answer Right.

sincerely.G-d bless you.
ERNESTO CUADRA
MANAGUA,NICARAGUA. C.A

How to Troubleshoot a Nordic Track C2500 X Jolie Johnson

Based in Austin, Texas, Jolie Johnson has been in the fitness industry for over 12 years and has been writing fitness-related articles since 2008 for various websites. She received her Bachelor of Arts in English and philosophy from the University of Illinois.
By Jolie Johnson, eHow Contributor

updated April 15, 2011

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The NordicTrack is a treadmill designed for in-home use. It offers a speed range of 0 to 10 mph and an incline range of 0 to 10 percent. It folds up vertically to save space when you aren't working out and can be rolled to a different room. The console has 16 preset workout programs and features iFit interactive technology. If you have problems with the console or walking belt, you can often fix them yourself with some basic troubleshooting steps
Instructions

1. Power Turns Off When You're Using the Treadmill
   • 1 Check the reset switch on the bottom of the treadmill near the power cord. If it has tripped, the top of the switch will protrude. Wait 5 minutes then press the switch.
     
   • 2 Check that the power cord is plugged in completely. If it is plugged in, unplug it, wait 5 minutes then plug it back in.
     
   • 3 Remove the magnetic key from the console then reinsert it.
     
   The Console Won't Turn Off
   • 1 Insert the magnetic key into the console. Your C2500 is stuck in demo mode if the console won't turn off after you remove the magnetic key from the console.
     
   • 2 Hold the "Stop" button down for a few seconds.
     
   • 3 Press the "Speed" down (-) button. Remove the magnetic key.
     
   The Incline Does Not Change Correctly
   • 1 Press and hold the "Stop" and the "Speed" up (+) button. While holding the buttons, insert the key into the console, then release the buttons.
     
   • 2 Press either the "Incline" up or down arrow button. Wait while the incline raises and lowers. This recalibrates the incline system.
     
   • 3 Remove the key from the console.
     
   Walking Belt Slows
   • 1 Unplug your C2500 and remove the key from the console.
     
   • 2 Turn both rear adjustment bolts, located on the back of the walking deck, to the left, a 1/4 turn.
     
   • 3 Lift the edge of the walking belt in the middle of the deck. You should be able to lift it 2 to 3 inches off the walking platform. If the belt is still too tight, loosen the bolts another 1/4 turn each.
     
   • 4 Plug the treadmill in and reinsert the console key. Walk on the belt at a slow speed to see if it still slows. Repeat Step 2 if necessary.
     

I need to bake in my oven how can I find the button to set the temp to bak?