Tundra IBC4024 - Manual (Page 6)

6 IBC4024-GD-0512-EN
5 Trouble shooting guide
1. LOOSEN THE SCREW ON THE POSITIVE TERMINAL AND DISCONNECT THE POSITIVE WIRE. READ
THE CONVERTER OUTPUT VOLTAGE USING A DC VOLTMETER. IF THE VOLTAGE IS ABOVE
26 VOLTS, THE CONVERTER IS WORKING PROPERLY.
2. IF THE CONVERTER OUTPUT IS ZERO VOLTS, USE AN AC VOLTMETER TO CHECK FOR PROPER
VOLTAGE AT THE 120 VAC INLET, WHERE THE CHARGER IS PLUGGED IN. THIS VOLTAGE
SHOULD BE BETWEEN 105 AND 130 VOLTS.
3. CHECK THE FUSES LOCATED AT THE FRONT OF THE CONVERTER. THESE FUSES CAN BLOW IF
THE BATTERY OR DC OUTPUT LEADS HAVE BEEN CONNECTED IN REVERSE, EVEN FOR A
MOMENT, OR IF THE CHARGER DC CABLES OVERHEAT BECAUSE THEY ARE UNDERSIZED OR
IMPROPERLY CONNECTED. REPLACE THE FUSES AND REPEAT STEP 1.
4. IF THE PROBLEM PERSISTS, USE THE CHART BELOW.
PROBLEM POSSIBLE CAUSES ACTION
1. No Output Not connected to 120 VAC source Connect to an AC source
Check AC distribution panel source for a tripped
breaker
External Fuses Blown Check cable for Reverse Polarity
Replace Fuses with same type and rating
Short Circuit Trace AC Circuits for possible fault
Unit has shutdown due to overheating Check air flow
Allow unit to cool
Unit has shutdown due to over voltage
(Also see Item 5 below) Check input voltage
Charger will shut down if the input voltage exceeds
132 Volts AC
Correct Input Voltage
2. External Fuses
blown
Reverse Battery Hook-Up Correct Hook-up and replace Fuses with same type
and rating
3. Charger cycles
on & off
Compartment gets too hot Check air flow to the charger
Improve Ventilation to the compartment
4. Low Output Excessive Load for Charger Reduce load requirements or Install Larger Charger
Input Voltage not between 105-130 VAC Correct input supply voltage
Bad Battery Cell(s) Replace Battery
5. Intermittent or no
Output on
Generator, but
works on Shore Power
Unit has shutdown due to over voltage. Add another load to the generator, this may reduce
the “spikes” to an acceptable level
Some generators provides excessive
voltage spikes on the AC power output,
this may cause the over voltage protection
to shut the unit down Contact generator manufacturer for possible defect
in the generator