The most common issues can be categorized in three ways:
The flowchart above can be used to diagnose most simple problems for the model 300 ReBuilder and each output of the model 2407 individually.
Always begin your test with a good 9V battery, of 8.5 V or higher.
For the 2407 begin your testing using the battery and on the 7.83Hz setting.
Once you have verified the ReBuilder® is sending a signal using the flow chart above, you can easily pinpoint an application issue.