SECTION 6: SERVICE

This section is provided for your convenience—it is not a substitute for the Grizzly Service Department. If you need help troubleshooting, replacing parts, or you are unsure of how to perform the procedures in this section, then feel free to call our Technical Support at (570) 546-9663.

Troubleshooting

Symptom

Possible Cause

Possible Solution

 

 

 

 

 

Motor will not start.

1.

Tank already pressurized.

1.

Motor will not start if tank

 

 

 

 

is fully pressurized.

 

2.

Thermal overload switch

2.

Wait for motor to cool.

 

 

has tripped.

 

 

 

3.

Low voltage.

3.

Check power line for

 

 

 

 

proper voltage.

 

4.

Short circuit in motor or

4.

Inspect all connections on

 

 

cord, or loose connec-

 

motor for loose or shorted

 

 

tions.

 

terminals or worn insula-

 

 

 

 

tion.

 

5.

Incorrect fuses or circuit

5.

Install correct fuses or cir-

 

 

breakers in power line.

 

cuit breakers.

 

6.

Pressure switch is bad.

6.

Replace the pressure

 

 

 

 

switch.

 

 

 

 

 

Motor fails to develop

1.

Power line overloaded

1.

Reduce load on power

full power (output of

 

with lights, appliances,

 

line.

motor decreases rapidly

 

and other motors.

 

 

with decrease in volt-

2.

Undersized wires or cir-

2.

Increase wire sizes or

age at motor terminals).

 

cuits too long.

 

reduce length of the cir-

 

 

 

 

cuit.

 

 

 

 

 

Motor overheats and

1.

Cooling fins dirty.

1.

Clean cylinder fins and

thermal overload turns

 

 

 

motor area.

motor OFF.

2.

Air filter clogged.

2.

Inspect and clean air filter.

 

3.

Compressor is running

3.

Do not use air tools with

 

 

too long without a break.

 

CFM needs that exceed

 

 

 

 

the compressor CFM rat-

 

 

 

 

ing.

 

4.

Air circulation through the

4.

Clean out motor to pro-

 

 

motor restricted.

 

vide normal air circula-

 

 

 

 

tion.

 

 

 

 

 

Model G0464/G0465/G0467/G0468/G0470 Air Compressors

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Grizzly G0464 instruction manual Service, Troubleshooting, Symptom Possible Cause Possible Solution