Troubleshooting and Diagnostics

DANGER

HAZARDOUS VOLTAGES CAN CAUSE SEVERE INJURY OR DEATH.

These charts may indicate problems that require authorized GE Zenith service personnel.

Hazardous voltages may exist on termination plugs other than those that go into the MX150.

General Troubleshooting

The following troubleshooting guide is used to recognize, and determine basic faults. When using this guide, it will ask several questions about the condition of the switch. This guide will then list an order of the possible faults. You will then look at the first suspected fault to determine if it is the problem. If it is not a fault, you go to the second suspected fault. If you go through all of the

suspected faults, or the chart instructs you to, call a GE Zenith Representative for further assistance.

NOTE: When you use the troubleshooting charts, the Annunciation column refers to the LED’s on the control panel.

Symptom

Annunciation

Possible Cause(s)

Corrective Action

Engine does not START

SOURCE 2

Engine start wires not

Check engine start connections

 

AVAILABLE

terminated properly

 

 

LED off

 

 

 

Generator is in OFF position

Investigate why Engine Control

 

 

 

 

 

Switch was turned off

 

 

 

 

Engine does not stop

LCD Display -

U timing cycle not complete

Check U timer setting

 

“TD Engine Cool Down”

 

 

 

 

 

 

 

SOURCE 1 POSITION, and

Engine start wires not

Check Engine Start Connections

 

SOURCE 1 and SOURCE 2

terminated correctly

 

 

AVAILABLE LEDs on,

 

 

 

Generator in MANUAL

Place generator in AUTO

 

but U timer has timed out

 

 

 

 

 

 

 

ATS will not transfer

SOURCE 2 AVAILABLE

SOURCE 2 voltage or frequency

Check: Engine Start Connections,

to SOURCE 2

LED off

not within acceptable parameters

Generator Breaker, Generator Output,

 

 

 

and Engine Control Switch

ZTG Series

 

 

 

 

None

Power supply connector unplugged

Plug in connector

 

 

 

 

 

LCD Display -

W timing cycle not complete

Check W Timer setting

 

“S1 _ _ _ _ TD XFR S1>S2

 

 

 

Time Remaining _ _ _ _”

 

 

 

 

 

 

ATS will not transfer

LCD Display -

DW timing cycle not complete

Check DW Timer setting

to SOURCE 1

“ATS Open

 

 

 

Time Remaining _ _ _ _”

 

 

ZTGD Series

 

 

 

 

 

 

SOURCE 1 AVAILABLE

SOURCE 1 voltage or frequency

Check utility and utility breakers

 

LED off

not within acceptable parameters

 

 

 

 

 

 

None

Power supply connector unplugged

Plug in connector

 

 

 

 

 

LCD Display -

Limit switch or RT box

Call Technical Services

 

“Diagnostic Code 001”

connector unplugged

 

 

 

 

 

 

LCD Display -

T timing cycle not complete

Check T Timer setting

 

“S1 OK

 

 

 

Time Remaining _ _ _ _

 

 

 

Bypass”

 

 

 

LCD Display -

TD timing cycle not complete

Check DT Timer setting

 

“ATS Open

 

 

 

Time Remaining _ _ _ _”

 

 

 

 

 

 

24

ZTG/ZTGD Operation and Maintenance Manual (70R-1000D)

GE Zenith Controls

Page 24
Image 24
GE 70R-1000D manual Troubleshooting and Diagnostics, General Troubleshooting