TMG TMG-HW28, Product Manual

Page: 23 / 41

SERVICE MANUAL
This manual is intended for technical personnel to assist in the diagnosis and repair of
issues with pressure washers.
This manual is not intended for use by non-technical personnel.
It is advised to always refer to competent technical personnel when repairs are advised to
avoid equipment damage or potential personnel injury.
POWER SYSTEM DIAGNOSTICS - Gas Engine Not Starting
PROBLEM POSSIBLECAUSE SOLUTION
Gas motor not starting
Fuel Check to see if proper fuel levels are maintained
No ignition
Check ignition by removing spark plug from cylinder. If
electric start, try starting using the recoil starter.
Electric Starter/Battery Recharge or replacebattery.
Fuse blown in key switch 18 amp engine, open key switch, replace 30 amp fuse
Spark Plug -
stronggas smell
Flooded Wait 5 minutes before attempting to restart.
No ignition Check ignition by removing spark plug from cylinder. If
electric start, try starting using the recoil starter.
Bad plug
Check spark plug and replace if necessary. Carbon
deposits can indicate a fouled plug or too much
fuel.
Plug does not fire
Poor connection Inspect the ignition connection.
Bad magneto Check the source of spark plug for engine ignition.
Bad ignitionsystem Poor connection Check the source of spark for the engine ignition.
Spark Plug - no gas smell
No fuel to cylinder Check fuel delivery from carburetor to cylinder. Check
carburetor float bowl for fuel.
Fuel line restricted Inspect fuel line to carburetor for restrictions or clogging.
Flexible line may be kinked.
Stuck carburetor float Unstick float
Clogged carburetor needle valve Unclog needlevalve.
Bad fuel pump Replace fuel pump.
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