Problem 20 – 7.5 amp fuse (f1) blown, Problem 21 – generator will not exercise, Problem 22 – no low speed exercise – Generac Power Systems 8 kW LP User Manual
Page 124: Part 4, Troubleshooting flow charts

Part 4
Page 122
DC CONTROL
sEctioN 4.3
trouBlEsHootiNG floW cHarts
FUSE BLOWS WHEN
PLACED IN “AUTO”
OR “MANUAL”
Problem 20 – 7.5 Amp Fuse (F1) Blown
TEST 80 – CHECK
CRANKING AND
RUNNING CIRCUITS
Problem 21 – Generator Will Not Exercise
TEST 79 – TEST
EXERCISE
FUNCTION
GOOD
BAD
Problem 22 – No Low Speed Exercise
TEST 81 - CHECK TO SEE
IF LOW SPEED FUNCTION
IS ENABLED
TEST 82 - CHECK
OPERATION OF
CHOKE SOLENOID
TEST 69 – TEST
CHOKE
SOLENOID
REPLACE
CONTROLLER
REPLACE
DISABLED
ENABLE
ENABLED
OPERATING NORMALLY