Answer
Jul 29, 2020 - 01:08 PM
Have you confirmed that the unit is still working, in spite of not seeing any lights?
Typically, if the unit is working, when the coach is plugged into shore power, you'll measure around 13.5 volts dc between the yellow HOUSE BATTERY [+] wire and ground (black) wires - which confirms that the unit is getting adequate voltage from your house battery charger. You'll also measure around 13.2 volts dc between the blue STARTING BATTERY [+] wire and ground (black) wires - which confirms that the unit is passing adequate voltage to your starting batteries. If the unit is confirmed to be working, check the black ground wire to make sure that it's connected to something that is actually grounded - If it isn't the unit may continue to pass current to the starting batteries, even though no LEDs are lit.
Typically, if the unit is working, when the coach is plugged into shore power, you'll measure around 13.5 volts dc between the yellow HOUSE BATTERY [+] wire and ground (black) wires - which confirms that the unit is getting adequate voltage from your house battery charger. You'll also measure around 13.2 volts dc between the blue STARTING BATTERY [+] wire and ground (black) wires - which confirms that the unit is passing adequate voltage to your starting batteries. If the unit is confirmed to be working, check the black ground wire to make sure that it's connected to something that is actually grounded - If it isn't the unit may continue to pass current to the starting batteries, even though no LEDs are lit.
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