11. Troubleshooting guide

Case 1. Starting failure

CHECK

PROBABLE CAUSES

ACTION

fuel tank

incorrect fuel

fuel filter

fuel filter is clogged

carburetor adjustment screw

out of normal range

sparking (no spark)

spark plug is fouled/wet

 

plug gap is incorrect

spark plug

disconnected

drain it and with correct fuel

clean

adjust to normal range

clean/dry

correct (GAP: 0.6~0.7mm)

retighten

Case 2. Engine starts but does not keep running/Hard re-starting.

CHECK

PROBABLE CAUSES

ACTION

fuel tank

incorrect fuel or staled fuel

carburetor adjustment screw

out of normal range

muffler,cylinder (exhaust port)

carbon is built-up

air cleaner

clogged with dust

cylinder fin, fan cover

clogged with dust

drain it and with correct fuel

adjust to normal range

wipe away

wash

clean

When your unit seems to need further service, please consult with our RedMax service shop in your area.

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RedMax HC510DV manual Troubleshooting guide, Check Probable Causes Action,  32 