Meridian Manufacturing, Inc.
October 2014 | Revision 1.0
15-1
15. TROUBLESHOOTING
15.1 TROUBLESHOOTING CHART
PROBLEM
CAUSE
SOLUTION
Gasoline engine will not start.
No fuel.
Fill the fuel tank.
Low engine oil.
Fill the crankcase with oil.
Cold engine.
Open choke.
Ignition key switch off.
Turn ignition key switch on.
Battery dead.
Recharge or replace battery.
Engine problem.
Refer to engine manual.
Wrong fuel type.
Do not use gasoline containing ethanol.
Poor fuel quality.
Store gasoline in a clean, plastic, sealed
container approved for fuel storage. Close
vent cap (if equipped) when not in use and
store container away from direct sunlight.
If fuel is stored longer than three months,
adding a fuel stabilizer is recommended.
Dirty air filter.
Clean or replace the filter.
Electrical functions are not work
-
ing properly.
Battery cable or battery.
Check battery cable and make sure battery
is fully charged.
Improper ground.
Check for proper grounding of electrical
circuit.
DEF pump is not working
properly.
Pump is not working.
The DEF pump is for intermittent duty
only. Once the maximum thermal limit
is reached, the motor must be allowed
to return to ambient temperature before
resuming operation.
Pump will not start.
Check in-line fuse.
Check for correct Voltage (±10%) and
electrical connections.
Check motor for open or grounded circuit.
Check for locked drive assembly.
Pump will not prime.
(no discharge but motor runs)
DEF tank is empty.
Inlet or outlet pipes and/or hose are
blocked with debris.
Check for severe vacuum leak.
Check for proper Voltage with the pump
operating (±10%).
Check pump for damage.
Pump leaks.
Check pump seals and plugs.
Check for loose pump head or drive
screws.
Chapter 15 | Troubleshooting
