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Error code reference

Bosch Dryer Error Code E:168

Operating Unit program configuration does not match Power Unit program configuration

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What the E:168 error code actually means

Your Bosch dryer is showing an error because the control panel unit and the main power control unit are not programmed to work with each other. This usually happens when a replacement part with the wrong configuration was installed during a previous repair. A technician will need to swap in the correct control panel unit and sync the two modules together to fix it.

Diagnostic procedure

The full E:168 procedure

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First diagnostic step
Replace Operating Unit VT with correct part and remerge.
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Most common causes of E:168

Ranked by how often they cause this code
  1. 1Incorrect replacement Operating Unit installed
  2. 2Wrong part ordered or substituted during repair
  3. 3Merge procedure not completed after Operating Unit replacement
  4. 4Operating Unit replaced with a refurbished or pulled unit of unknown origin

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Questions people ask about E:168

What does E:168 mean on a Bosch dryer?
E:168 means the program configuration on the Operating Unit does not match the program configuration on the Power Unit. This is a software or firmware compatibility mismatch between the two control modules, not a hardware failure. It is typically caused by an incorrect or incompatible Operating Unit being installed. Resolving it requires installing the correct Operating Unit and completing a merge procedure.
Is it safe to use my Bosch dryer when E:168 is showing?
E:168 is not classified as a hardware fault, and no physical component is confirmed to be damaged when this code appears. However, because the two control modules are out of sync, the dryer may not operate correctly or at all. It is best to have the configuration mismatch corrected before continuing normal use.
How much does it cost to repair a Bosch dryer E:168 error?
Repair costs vary depending on the cost of the correct Operating Unit part and local labor rates. Parts for Bosch dryer control modules typically range from around $80 to $250 or more, and technician labor for diagnosis and the merge procedure can add $75 to $200 depending on your area. Getting a quote from a Bosch-authorized service provider will give you the most accurate estimate for your specific model.
Will resetting my Bosch dryer clear the E:168 error?
No, resetting the dryer or cycling the power will not clear E:168. The error is caused by an underlying configuration mismatch between the Operating Unit and the Power Unit, which persists regardless of resets. The only fix is to install the correct Operating Unit and run the required merge synchronization procedure.
How do I fix the E:168 error on a Bosch dryer?
The fix requires replacing the installed Operating Unit with the correct part that matches the program configuration expected by the Power Unit. After installing the correct Operating Unit, a merge procedure must be performed to synchronize the two modules. This repair is best handled by a qualified technician who can confirm the correct part and complete the merge process properly.

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