Generac Power Systems XT-EFI Series User Manual

Section 2 Direct Excitation (Brush Type)
8 Diagnostic Repair Manual
Problem 6 – Voltage & Frequency Are Both High or Low
Problem 7 – Excessive Voltage/Frequency Droop When Load is Applied
Problem 8 – Generator Produces High Voltage at No-Load
TEST 29 – CHECK & ADJUST ENGINE
GOVERNOR, 220cc ENGINE
GO TO
PROBLEM 5
GO TO
PROBLEM 7
GO TO PROBLEM 5,
TEST 12 – ADJUST
VOLTAGE
REGULATOR
FREQUENCY GOOD,
LOW OR RESIDUAL
VOLTAGE
FREQUENCY IS GOOD
BUT NO-LOAD
VOLTAGE IS HIGH
NO-LOAD FREQUENCY &
VOLTAGE GOOD BUT THEY
DROOP TOO MUCH WHEN
LOAD IS APPLIED
GO TO PROBLEM 23
REDUCE LOAD
END TEST
TEST 10 – CHECK
LOAD VOLTAGE &
FREQUENCY
TEST 11 – CHECK
LOAD WATTS &
AMPERAGE
GOOD
GOOD
BAD
OVERLOADED
NOT OVERLOADED
TEST 29 – CHECK &
ADJUST ENGINE
GOVERNOR,
220/410/426cc
ENGINE
BAD
STOP
TESTS
FREQUENCY AND
VOLTAGE O.K.
FREQUENCY O.K.,
BUT VOLTAGE IS
STILL HIGH
TEST 29 – CHECK & ADJUST ENGINE
GOVERNOR, 220/410/426cc ENGINE
TEST 1 – CHECK
NO-LOAD VOLTAGE
AND FREQUENCY
FREQUENCY O.K.,
BUT VOLTAGE HIGH
FREQUENCY
HIGH
REPLACE AUTOMATIC
VOLTAGE REGULATOR
TEST 12 – ADJUST
VOLTAGE
REGULATOR
GOOD
RE-CHECK VOLTAGE
AT RECEPTACLE
PANEL
REPLACE
ALTERNATOR

Generac Power Systems XT-EFI Series Specifications

General

Brand	Generac Power Systems
Model	XT-EFI Series
Category	Portable Generator
Language	English