Grizzly G8695, G8694, G8889 Troubleshooting, Symptom Possible Cause Corrective Action

TROUBLESHOOTING

SYMPTOM							POSSIBLE CAUSE		CORRECTIVE ACTION
Pump		Motor	Will			Not	1.	Low voltage.	1.	Check power line for proper voltage.
Start							2.	Open circuit in motor, switch or	2.	Inspect all lead connections on motor, switch and
								cord.		cord for loose or open connections.
							3.	Tank already pressurized.	3.	Motor will not start if tank pressure is too high.
							4.	Thermal overload switch.	4.	Thermal overload switch has tripped, wait for motor
										to cool, then reset switch by pressing red button.
Pump		Motor	Starts;			But	1.	Short circuit in line cord or plug.	1.	Inspect cord or plug for damaged insulation and
Fuses		Blow	or		Circuit					shorted wires.
Breakers Trip							2.	Short circuit in motor or loose	2.	Inspect all connections on motor for loose or shorted
								connections.		terminals or worn insulation.
							3.	Incorrect fuses or circuit break-	3.	Install correct fuses or circuit breakers.
								ers in power line.
Low	Pressure			At		The	1.	Air leaks in flexible hoses.	1.	Check air hoses and all connections for leaks.
Tool							2.	Pressure gauge bad	2.	Check pressure in line with known good gauge.
							3.	Pressure regulator bad.	3.	Adjust pressure regulator, if no improvement inspect
										regulator for leaks or replacement.
Low	Pressure			At		The	1.	Air leaks in tanks or delivery	1.	Check air tanks, pipes and all connections for leaks.
Tanks								pipes.
							2.	Drain cock open	2.	Close drain cock.
							3.	Safety valve releasing below	3.	Replace safety valve.
								125 PSI.
							4.	Air filter clogged.	4.	Inspect and clean air filter.
							5.	Gaskets leaking	5.	Check gaskets on cylinder head assembly, repair or
										replace as needed.
							6.	Worn rings.	6.	Inspect and replace pump piston rings.
Compressor Knocking							1.	Improper oil level.	1.	Check oil level and add oil.
							2.	Air filter clogged.	2.	Inspect and clean air filter.
							3.	Piston assembly loose.	3.	Inspect and repair piston and connecting rod.
Air Leaks From Pressure							1.	Faulty check valve.	1.	Clean dirt or debris from rubber membrane of check
Switch										valve after removing top nut.
							2.	Faulty pressure switch.	2	Repair or replace pressure switch.
Air Is Dirty Or Has							1.	Tanks not drained.	1.	Open drain cocks on both tanks and make certain all
Excessive Moisture										condensation water is drained out.
							2.	Delivery pipes are dirty.	2.	Remove delivery pipes, clean out and replace.
Motor Runs Hot							1.	Cooling Fins Dirty.	1.	Clean cylinder head fins and also remove any accu-
										mulated dirt or grease from motor area.
							2.	Air filter clogged.	2.	Inspect and clean air filter.
Pressure Relief					Valve		1.	Faulty pressure switch, unit is	1.	Turn compressor off, unplug from power supply,
Stays		Open	And		Motor			trying to overpressure the tank		drain tank. DO NOT USE until switch is repaired or
Won’t Stop Running										replaced.
							2.	Faulty pressure relief valve.	2.	Relief valve is relieving pressure too early, test pres-
										sure relief and repair or replace,

G8694/G8695/G8889 Air Compressors -13-