Service & Troubleshooting Guide - Home Generator System - Models 040213 and 040234 (15kW)
Section 2 - Troubleshooting Information
Page 31
2
(FC_3)
LOW OUTPUT VOLTAGE:
The low voltage shutdown feature is designed to protect
the generator and its loads from an output voltage that is
too low. When utility power has failed and the generator
has stabilized with its transferred loads, the CMA senses
output voltage on
Wire #s E1
and
E2
MODELS 040213 & 040234 - GENERATOR” on
page 66).
If the CMA does not sense the proper
generator voltage, it will shut down the generator and
display
“FC_3”
on the unit control panel.
NOTE
: If so equipped, the CMA simultaneously
signals the remote LED to flash in a sequence of
three blinks and displays “Low Output Voltage”
on the Statstation™ screen as well.
This condition may be caused by:
• A generator that is overloaded
• A restriction in the fuel flow
• A broken or disconnected signal lead
(E1 or E2)
.
• Diminished engine power
• A failed alternator winding
• An open control panel circuit breaker
• Open wiring.
Test 1
Measure Circuit Breaker Load-Side Voltage:
Remove cover from generator circuit breaker.
“Manual Operation Test (No Load)” on page 61)
1. Reset the fault code detection system
“Resetting The Fault Code Detection System” on
page 20)
.
2. Ensure that the generator circuit breaker is in the
CLOSED
position and the 15 Amp fuse is installed
and functional.
3. Start the generator
When the unit has stabilized, check the generator output:
4. Measure the voltage at the output side of the
circuit breaker (Fig. 18).
Fig. 18 - Measure Output Voltage Of Generator
If voltage is OK:
• Proceed to test 2
Test 2
Measure Voltage at E1 and E2
Gain access to the generator control panel
.
With the unit running,
1. Measure for 240VAC at the CMA pins (Fig. 19)
E1
and E2
.
Fig. 19 - Measuring Voltage E1 And E2
If no voltage is present:
• Repair or replace wires between the circuit
breaker and E1 and E2.
About 240VAC should be measured.
About 240VAC should be measured.
Summary of Contents for 40213
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