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Author Topic: heart interface inverter charger shows slow blinking red light, overload/overtem  (Read 1074 times)


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Hi, I'm fishbait, I have a 2002 rexhall motor home.  charger/inverter shows different faults at different times.  can show ac in, fault or overload/overtemp.  I cannot find anything that does not work.  I don't think unit will charge when red light is on.  If left off for hours, will show green and charge a short while then red led comes on.  Instructions say to find cause and fix then it will automatically start back up.   I can't find anything that does not work because of it, but I need unit to charge.  I have a separate charger on it now trying to get 13.5 volts per instructions.  Perhaps batteries dropped below 10 volts because I thought it was charging when I had it plugged in at home.  I have bought new batteries (Sam's)  but problem still exist.  I have four golf cart batteries for house batteries.  Hard to find cause if everything works.  Would appreciate any help.