What does the sold red light mean and what does the blinking red light mean on the charger?
My name is Luke with the Help Desk. In addition to Gary's response, please have a read below for further information on the 7535 6-Gang Charger (HU3006) Charge Indicators.
You may also find the below attached .pdf file useful in your troubleshooting.
3201.6.5 Gang Charger Pages from 8000075A.pdf
Hope this helps
Americas Help Desk
This posting is provided "AS IS". No Warranty. No Guarantee. Maybe updated or changed without notice at any time. You can use the information provided at your own risk.
A solid red light means "Battery rejected (at insertion) or unable to complete charge on battery. A flashing red light means "Charging circuit problem".
So it would be a battery charging issue?
That is what it sounds like to me.