Troubleshooting Guide - Excell EPW2123100 Operation Manual

TROUBLESHOOTING GUIDE

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Problem
Engine will not start or
stops while operating
Engine is overloaded
Water or oil leaking
from bottom of pump
Pressure increases
when gun is closed
Engine running but
pump not building
maximum pressure or
has irregular pressure
No intake of chemicals
Trigger will not move
Water in crankcase
Noisy operation
Rough/pulsating
operation with
pressure drop
High crankcase
temperatures
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Cause
1. Low-oil shutdown.
2. Engine switch not in the "ON" position.
3. Pressure build up in hose.
1. Nozzle partially blocked.
1. A small amount of leakage is normal.
1. Bypass valve not operating properly.
1. Faucet closed.
2. Unit has been stored in freezing
temperatures.
3. Inadequate water supply.
4. Water inlet screen clogged.
5. Kink in garden hose.
6. Wand nozzle worn or damaged.
7. Air in pump.
8. Suction or discharge valves clogged or
worn out.
9. By-pass valve not operating effectively.
1. Injection tube not securely inserted into
unit.
2. Tube cracked or split.
3. Wrong nozzle.
4. Injection tube strainer clogged.
5. Nozzle blocked.
6. Dried chemicals in injector.
1. Gun safety lock engaged.
1. High humidity.
2. Worn seals.
1. Worn bearings
2. Air mixed with water.
1. Worn packing.
2. Inlet restriction.
3. Unloader.
4. Air mixed in water.
1. Wrong grade of oil.
2. Improper amount of oil in crankcase.
Correction
1. Fill engine with oil.
2. Turn switch "ON".
3. Squeeze trigger.
1. Clean nozzle.
1. If excessive leaking occurs call the Customer
Service Department.
1. Call the Customer Service Department.
1. Open faucet.
2. Thaw out unit completely including hose, gun
and wand.
3. Provide a minimum of 4 gpm at 20 psi.
4. Clean screen.
5. Straighten hose.
6. Replace nozzle.
7. Let run with gun open and wand removed
until steady stream of water is released.
8. Call the Customer Service Department.
9. Call the Customer Service Department.
1. Push firmly into injector.
2. Replace tubing.
3. Switch to low pressure nozzle.
4. Clean strainer.
5. Clean nozzle.
6. Dissolve by running warm water trough the
injection tube.
1. Release safety lock.
1. Change oil more frequently.
2. Call the Customer Service Department.
1. Call the Customer Service Department.
2. Check inlet lines for restrictions and /or proper
sizing.
1. Call the Customer Service Department.
2. Check system for stoppage, air leaks.
correctly sized inlet plumbing to pump.
3. Check unloader for proper operation.
4. Check inlet lines for restrictions and/or proper
sizing.
1. Use recommended oil.
2. Adjust oil level to proper amount.
16 - ENG