Vanner 20-1000TUL Owner's Manual download pdf (Page 12)

Vanner Power Group

20-1000TUL INVERTER—OWNER'S MANUAL

Section 7: Troubleshooting the 20-1000TUL

The following are the most common questions heard by Vanner service professionals.

If your situation does not apply to the following categories, please contact your local

Vanner Power Group Service Center.

Vanner Power Group Customer Service:

1-800-AC-POWER

SYMPTSYMPT

SYMPT

OMOM

OM The LEDs on the front panel blink in sequence.

SOLSOL

SOL

UTIONUTION

UTION It is normal for this to occur if the inverter switch is On when the DC input is connected to the unit.

If the DC is already connected and the LEDs blink in sequence then the DC input voltage is dropping.

Check for poor connections in the DC wiring, bad battery or a heavy DC load.

SYMPTSYMPT

SYMPT

OMOM

OM ON lamp does not light steadily after pushing in the ON-OFF/RESET Inverter

Switch.

SOLSOL

SOL

UTIONUTION

UTION Lamp flashes when utility power is present.

Lamp flashes in Load Demand Waiting mode.

Check/Reset GFCI on the receptacle.

Check battery connections if utility power is OFF.

Check DC fuses if utility power is OFF.

SYMPTSYMPT

SYMPT

OMOM

OM ON lamp fully illuminates. AC load does not run.

SOLSOL

SOL

UTIONUTION

UTION Check and reset circuit breaker.

Verify AC load and cord are in proper condition.

SYMPTSYMPT

SYMPT

OMOM

OM BATTERY LOW lamp illuminates when AC load is applied.

SOLSOL

SOL

UTIONUTION

UTION Check battery connections.

Check battery condition.

Recharge battery if voltage is less than 10.5 VDC.

Check AC loads for shorted circuit.

Check the vehicle's alternator charging system for proper operation.

SYMPTSYMPT

SYMPT

OMOM

OM OVERTEMP lamp illuminates.

SOLSOL

SOL

UTIONUTION

UTION Something has caused the unit to overheat. Check for obstruction of air flow to the cooling fan or from

ventilation holes. Verify AC load is within unit’s rated

capacity.

SYMPTSYMPT

SYMPT

OMOM

OM OVERLOAD lamp illuminates with AC load applied.

SOLSOL

SOL

UTIONUTION

UTION Verify AC load is within unit’s rated capacity.

SYMPTSYMPT

SYMPT

OMOM

OM DC fuse blows when connecting DC input cables.

SOLSOL

SOL

UTIONUTION

UTION Check for reverse polarity: red cable to battery positive (+), black cable to battery negative (-). The

unit may be damaged and require repair service.

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Vanner 20-1000TUL Owner's Manual Page 12

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