GE ZTS Series User Manual

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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 Entelli-Switch 250.
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
AVAILABLE
LED off
Engine start wires not
terminated properly
Check engine start connections
Generator is in OFF position
Investigate why Engine Control
S
witch was turned off
Engine does not stop
LCD Display -
“TD Engine Cool Down
”
U timing cycle not complete Check U timer setting
SOURCE 1 POSITION, and
SOURCE 1 and SOURCE 2
A
VAILABLE LEDs on,
but U timer has timed out
Engine start wires not
terminated cor
rectly
Check Engine Start Connections
Generator in MANUAL Place generator in AUTO
ATS will not transfer
to SOURCE 2
SOURCE 2 AVAILABLE
LED of
f
SOURCE 2 voltage or frequency
not within acceptable parameter
s
Check: Engine Start Connections,
Generator
Breaker, Generator Output,
and Engine Control Switch
ZTG Series
None Power supply connector unplugged Plug in connector
LCD Display -
“S1 _ _ _ _ TD XFR S1>S2
T
ime Remaining _ _ _ _”
W timing cycle not complete Check WTimer setting
ATS will not transfer
to SOURCE 1
LCD Display -
“ATS Open
T
ime Remaining _ _ _ _”
DW timing cycle not complete Check DWT
imer setting
ZTGD Series
SOURCE 1 AVAILABLE
LED of
f
SOURCE 1 voltage or frequency
not within acceptable parameter
s
Check utility and utility breakers
None Power supply connector unplugged Plug in connector
LCD Display -
“Diagnostic Code 001”
Limit switch or RT box
connector unplugged
Call Technical Services
LCD Display -
“S1 OK
T
ime Remaining _ _ _ _
Bypass”
T timing cycle not complete Check TT
imer setting
LCD Display -
“ATS Open
T
ime Remaining _ _ _ _”
TD timing cycle not complete Check DTTimer setting
Table 5
ZTS / ZTSD Operation and Maintenance Manual (71R-3000)
GE Zenith Controls
24

GE ZTS Series Specifications

General

Brand	GE
Model	ZTS Series
Category	Switch
Language	English