Troubleshooting - NorthStar 1572210 Owner's Manual

Before troubleshooting or attempting to service, read the following safety rules to
avoid accidental exposure to chemical and also risk of electric shock.
Note: A reserve, clean container should be kept for use when the sprayer tank needs to be emptied
temporarily for repairs. It is advisable to purchase a reserve tank from Northern Tool and Equipment
for use in these circumstances. The container should be properly labeled as to its contents if it is
used. In addition, it may be advisable to empty the tank contents using a transfer pump if the tank
drain hole is inaccessible.
Before attempting to service the sprayer:
1. Personal
protective
equipment
2. Review

troubleshooting

table
3. Empty and flush
4. Disconnect
power/relieve
pressure
5. Perform repairs
6. Test after
servicing
PROBLEM
Pump will not turn on
Pump will not turn on and LED light is on
Low pressure
Low flow
Poor spray distribution
Pump cycles while not spraying
Troubleshooting
WARNING
Wear personal protective equipment as directed on the chemical label while
servicing your sprayer.
Review the troubleshooting table below for the type of problem you are
experiencing. However, DO NOT attempt to repair until the steps listed below
are followed.
If the cause listed for your problem is clogged intake tube, clogged suction
strainer, or worn spray gun nozzle: empty the tank and flush the sprayer with
water as directed in the section, Operation – Step 4.
- In order to avoid accidental exposure to chemicals, never attempt to unclog
the intake tube or suction strainer, or service the spray gun nozzle, until the
tank has been emptied and the sprayer flushed with water.
Disconnect power to the sprayer and be sure all system pressure is relieved
by squeezing the gun trigger.
Follow the directions provided in the troubleshooting table to repair the
sprayer. See the Maintenance section for instructions to replace pump
cartridge.
NOTE: Never try to unclog the sprayer nozzle by blowing through it.
After servicing, ALWAYS test the sprayer for leaks with plain water before
using.
CAUSE
Pressure switch failure
Bad electrical connection
ON/OFF switch in Off position
Fuse blown
Short in wires
Low voltage
Leak inside pump cartridge
Worn spray gun nozzle
Worn pump cartridge
Clogged intake tube
Clogged suction strainer
Low voltage
Worn pump cartridge
Clogged intake tube
Suction strainer clogged
Worn spray gun nozzle
Worn pump cartridge
Leak in the system
SOLUTION
Replace pressure switch
Check battery connections
Check that both switches are ON
Replace fuse
Check condition of wires
Check voltage with battery monitor
Replace pump cartridge
Replace spray gun
Replace pump cartridge
Remove obstruction
Clean suction strainer
Check voltage with battery monitor
Replace pump cartridge
Remove obstruction
Clean suction strainer
Replace spray gun
Replace pump cartridge
Tighten leaking hose clamps or fittings,
replace spray gun
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