PROBLEM

CAUSE

CORRECTION

Motor will not run or restart.

Motor overload protection switch has

Let motor cool off and overload switch will automati-

 

tripped.

cally reset.

 

Tankpressureexceedspressureswitch

Motor will start automatically when tank pressure

 

“cut-in” pressure.

drops below “cut-in” pressure of pressure switch.

 

Wrong gauge wire or length of exten-

Check for proper gauge wire and cord length.

 

sion cord.

 

 

 

Check valve stuck open.

Remove and clean, or replace.

 

Loose electrical connections.

Check wiring connection inside pressure switch and

 

 

terminal box area.

 

Possible defective motor or capacitor.

Contact an Authorized Warranty Service Center for

 

 

inspection or replacement, if necessary.

 

Paint spray on internal motor parts.

Have checked by an Authorized Warranty Service

 

 

Center. Do not operate the compressor in the paint

 

 

spray area. See flammable vapor warning.

 

Fuse blown, circuit breaker tripped.

1. Check fuse box for blown fuse and replace, if

 

 

 

necessary. Reset circuit breaker. Do not use a

 

 

 

fuse or circuit breaker with higher rating than that

 

 

 

specified for your particular branch circuit.

 

 

2. Check for proper fuse; only “Fusetron” type T

 

 

 

fuses are acceptable.

 

 

3.

Check for low voltage conditions and/or proper

 

 

 

extension cord.

 

 

4.

Disconnect the other electrical appliances from

 

 

 

circuit or operate the compressor on its own

 

 

 

branch circuit.

 

 

 

Regulator knob has continuous

Pressure release valve on pressure

Bleed the line by pushing the lever on the pressure

air leak. Regulator will not shut

switch has not unloaded head pres-

switch to the “off” position; if the valve does not open,

off air outlet.

sure.

replace it.

 

Damaged regulator.

Replace regulator.

 

 

 

 

13 — ENG

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Image 13
DeVillbiss Air Power Company MG7-OFTWIN warranty Tripped Cally reset