Section 4 - Troubleshooting; 4.1 Troubleshooting Guide - Konica Minolta 423 series Quick User Manual

Troubleshooting

4.1 TROUBLESHOOTING GUIDE

PROBLEM
Engine won't start.
Engine starts, then shuts down.
Engine starts, then runs rough.
No AC output.
No DC output. **
Fuel leaks from drain hoses.
* Engine speed increases and decreases — This is normal as the generator starts up and as loads vary.
** Verify FlexPower Switch is in the "O" OFF position.
12
CAUSE
1. No fuel in tank.
2. Fuel valve turned off.
3. Defective spark plug.
4. Plugged fuel filter.
5. Defective or stuck engine stop switch.
1. Low fuel level.
2. Fuel tank vent closed.
3. Incorrect engine oil level.
4. Contaminated fuel.
5. Defective low oil level switch.
6. Defective ignition coil.
1. Choke is stuck or left on.
2. Dirty or clogged air filter.
3. Defective or dirty spark plug.
4. Dirty fuel filter.
5. Defective FlexPower switch.
1. Generator is overloaded (OVERLOAD LED is on).
2. AC voltage is low (OVERLOAD LED is on).
3. Inverter module is overheated (OVERLOAD LED is
on).
4. Short circuit in load (OVERLOAD LED is on).
5. Defective inverter assembly.
1. DC circuit breaker is open.
2. Defective DC circuit breaker.
3. Defective rectifier.
1. Fuel system over primed (flooded).
2. Carburetor drain in bowl is not closed.
CORRECTIVE ACTION
1. Add fuel to tank.
2. Turn fuel valve on.
3. Replace spark plug.
4. Replace fuel filter.
5. Replace engine start switch.
1. Add fuel to tank.
2. Open fuel tank vent.
3. Check engine oil level, add or drain as needed.
4. Replace fuel filter.
5. Replace Low Oil Level switch.
6. Replace ignition coil.
1. Turn choke off.
2. Clean or replace the air filter element.
3. Replace spark plug.
4. Replace fuel filter.
5. Replace FlexPower switch.
1. Shut down generator to reset module. Reduce
loads and restart generator.
2. Verify vent is open and choke is OFF.
3. Verify service door is ON. Let cool for 15 minutes
and restart generator.
4. Verify condition of any extension cords and all
loads being powere.
5. Replace inverter assembly.
1. Reset DC circuit breaker.
2. Replace DC circuit breaker.
3. Replace rectifier.
1. Turn vent in cap ON and let generator sit 15
minutes before restarting.
2. Turn valve clockwise to close.