To download the troubleshooting guide, click here.
To download the Quick Reference Troubleshooting Guide (Installer), click here.
To download the Quick Reference Troubleshooting Guide (User), click here.
TROUBLESHOOTING PARTS KIT
Having a spare part that is known to work will quickly lead to accurate identification of faulty components. Without this, it can be little more than guesswork.
Steelcase strongly recommends that every Dealer maintain a small kit of parts for troubleshooting purposes.
This kit of parts should include:
|
|
|
Desk Part No. |
Bench Part No |
|
Lifting Column |
qty=1 |
25316701SR |
1355943001SR Ext, LH |
|
Lifting Column |
qty=1 |
25316702SR |
1355943002SR Ext, RH |
|
Control Box |
qty=1 |
1298401001SR |
1298401003SR |
|
Controller (Digital/Preset) |
qty=1 |
1298394002SR |
1298394002SR |
|
Power Cable |
qty=1 |
22047321SR |
22047321SR |
*See Service Parts catalog for grounded power cords
Always maintain a complete kit of troubleshooting spare parts that are known to work properly, to quickly identify the root-cause of problems and resolve customer issues on the first try.
TROUBLESHOOTING STEPS
Step 1: Check for power at the wall outlet; ensure Desk or Bench is properly assembled, and all cables are securely connected. Upon powering up the Desk or Bench, the Control Box will click twice to indicate normal operation and verify that connections are properly made. If it clicks only once, or if it clicks 3 or more times, there is a fault in the system.
Step 2: Check all connections of Lifting Column Low-Voltage Cables. Check the connection points on the Control Box: are any of the pins in the connectors damaged or not making contact?
Step 3: Obtain a Control Box, Digital / Preset Controller, and Power Cable that are known to work.
Caution! If the Lifting Column is assembled to a Desk or Bench, first flip the Desk or Bench upside-down. This will allow full and free motion of the Lifting Columns, and will prevent any further damage to them.
Step 4: Test Lifting Columns for proper function, and replace any faulty Lifting Columns. To do this, create a bench-testing setup using known good components, for example from your troubleshooting parts kit. Use these known good components to test the Lifting Columns of the suspect Desk or Bench as follows:
- Verify the function of the bench-test setup by connecting all the known-good components, including Lifting Columns, synchronize the Lifting Columns (see Common Procedures), and check for proper function.
- Disconnect power to the Control Box, and connect the Lifting Columns of the suspect Desk or Bench to the bench-test setup. If the Lifting Columns of the suspect Desk or Bench now operate normally using the bench-test setup, then the Lifting Columns of the suspect Desk or Bench are good. Move on to Step 5.
- If the Lifting Columns of the suspect Desk or Bench do not operate normally, observe the error code shown in the display of the Digital / Preset Controller of the bench-test setup. The following error codes may indicate a fault with the Lifting Column, its Low-Voltage Cable, or the cable connector:
-
- E12 / E13 / E14: Defect on channel 1 / 2 / 3.
- E24 / E25 / E26: Overcurrent on motor M1 / M2 / M3
- E36 / E37 / E38: Plug detection in motor socket M1 / M2 / M3
-
- Using error code E12 as an example…error code E12 may indicate a fault with the Lifting Column plugged into channel 1 of the Control Box. To verify this, first disconnect power to the Control Box, and then swap the Lifting Column low-voltage connectors between channels 1 and 2, so that Lifting Column 1 is now plugged into 2, and 2 is plugged into 1. Re-connect the power.
- If the error code now reads E13, indicating a fault on channel 2, then the fault moved with the Lifting Column. Therefore, the problem must reside with the Lifting Column 1, which was moved from channel 1 to 2.
- If the error code instead continues to read E12, then both Lifting Columns may be faulty.
- For further verification, repeat this process by swapping out the suspect Desk or Bench Lifting Columns with the Lifting Columns from your troubleshooting parts kit, to zero in on which Lifting Column is faulty, if not both. (If the suspect Desk or Bench Lifting Columns function normally in the bench-test setup, move on to Step 5.)
Any faulty Lifting Columns must be replaced. There are no field-serviceable parts inside the Lifting Column.
Between each of the following steps, be sure to disconnect the Control Box from the power source for at least 5 seconds to power down the internal processor.
Step 5: If there are no error codes to indicate faults with the Lifting Columns or their Low-Voltage Cables or connectors, progressively swap out parts in the bench-test setup as follows:
- Swap the known-good Power Cable with the original from the non-functioning Desk or Bench. If it stops working, the Power Cable is faulty.
- Using the original Power Cable, swap the known good Controller with the original from the non-functioning Desk or Bench. If it stops working, the Controller is faulty.
- Using the original Power Cable and Controller, swap the known good Control Box with the original from the non-functioning Desk or Bench. If it stops working, the Control Box is faulty.
Be sure to go through all of the steps above to fully identify all faulty components. There could be more than one!
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TROUBLESHOOTING GUIDE
| Complete Troubleshooting Guide | |
| Quick Reference Troubleshooting Guide (Installer) | |
| Quick Reference Troubleshooting Guide (User) |