Husqvarna SD22B5DSA - Manual (Page 28)

TRoUBLESHooTING
28
Symptom Cause Action
Engine will not start
User error
Fuel valve closed. open the fuel valve.
Choke valve open Close the choke with cold engine.
Engine switch in oFF position Turn the engine switch to oN
Fuel system Fuel tank empty Fill with fuel
Machine stored without observing
proper procedure from chapter
“Storage/Winter storage” Clean tank, sludge reservoir and
empty carburetor. Fill the tank with
fresh fuel.
Contamination, water or ice in fuel
system. Clean tank, sludge reservoir and
empty carburetor. Fill the tank with
fresh fuel.
Carburetor problems. Contact an authorized service
workshop.
Spark plug Wrong spark plug type. Replace the spark plug.
Build-up on electrodes. Short
circuit. Check electrode gap and clean or
replace spark plug.
Gasoline or oil on the spark plug. Clean the spark plug. Air the
engine out. Start with full throttle.
No spark after checking spark plug Faulty engine switch, cable or
ignition.
Contact an authorized service
workshop.
Low compression Serious interior engine damage or
faulty valves. Contact an authorized service
workshop.
Engine is under-powered or runs
unevenly
Air filter
Clogged air filter Clean or replace the air filter
Fuel system Machine stored without observing
proper procedure from chapter
“Storage/Winter storage” Clean tank, sludge reservoir and
empty carburetor. Fill the tank with
fresh fuel.
Blue or voluminous
blue-white exhaust Contaminated or incorrect fuel Clean tank, sludge reservoir and
empty carburetor. Fill the tank with
proper fuel.
Black exhaust Choke left on open choke valve
Clogged air filter Clean or replace the air filter
Carburetor problems Contact an authorized service
workshop.
Ignition system Wrong spark plug type Replace the spark plug
Build-up on electrodes. Short
circuit. Check electrode gap and clean or
replace spark plug.
Faulty ignition unit. Contact an authorized service
workshop.
Low compression Serious interior engine damage or
faulty valves. Contact an authorized service
workshop.