Redarc have recently recalled a small number of TowPro Elite units as a precautionary measure’. The only units affected were those fitted between September 1st 2018 and January 21st 2019.
See the following link for more details;
https://www.redarc.com.au/recall-notice
If we have fitted a Redarc unit to your vehicle within the above dates, please call us and we can determine a time to see whether the issue applies to your unit.