Troubleshooting Chart - MADER LJ1500-24 Manual Del Usuario

Symptom
1. No electrical power
2. Blown fuse
Compressor will
3. Breaker open
not run
4. Thermal overload open
5. Pressure switch bad
Symptom
1. Defective check valve
Motor hums but
2. Poor contacts, line
cannot run or runs
slowly
3. Shorted or open motor
Fuses blow/circuit
breaker trips
1. Incorrect size fuse,
repeatedly
CAUTION!
2. Defective check valve
Never use an
extension cord
with this product
1. Low voltage
2. Clogged air filter
3. Lack of proper
Thermal overload
protector cuts out
repeatedly 4. Check valve
5. Compressor valves
1. Loose bolts, tank not
Knocks, rattles, 2. Defective bearing on
excessive vibration
3. Cylinder or piston ring
Troubleshooting
Chart (Continued) Possible Cause (s)
Symptom
1. Loose drain cock
Tank pressure
2. Check valve leaking
drops when
3. Loose connections at
compressor shuts
off
1. Excessive air usage,
Compressor runs
continuously and
2. Clogged intake filter
air output is lower
3. Air leaks in piping (on
than normal/low
discharge pressure

TROUBLESHOOTING CHART

Possible Cause (s)
Possible Cause (s)
or unloaded
voltage low
winding
circuit overloaded
or unloaded
ventilation/room
temperature too high
malfunction
failed
level
eccentric or motor shaft
is worn or scored
pressure switch or
regulator
compressor too small
machine or in outside
system)
Corrective Action
1. Plugged in? Check fuse/breaker or motor
overload
2. Replace blown fuse
3. Reset, determine cause of problem
4. Motor will restart when cool
5. Replace
Corrective Action
1. Replace or repair
2. Check connections, eliminate extension
cork if used, check circuit with voltmeter
3. Replace motor
DANGER! Do not disassemble check valve
with air in tank; bleed tank
1.Check for proper fuse, use time-delay fuse.
Disconnect other electrical appliances from
circuit or operate compressor on its own
branch circuit
2.Replace or repair
DANGER! Do not disassemble check valve
with air in tank; bleed tank
1. Eliminate extension cord, check with
voltmeter
2. Clean filter (see Maintenance section)
3. Move compressor to well ventilated area
4. Replace
5. Replace valve assembly
DANGER! Do not disassemble check valve
with air in tank; bleed tank
1. Tighten bolts, shim tank to level position
2. Replace
3. Replace or repair as necessary
Corrective Action
1. Tighten
2. Disassemble check valve assembly, clean
or replace
3. Check all connections with soap and
water solution and tighten
1. Decrease usage or purchase unit with
higher air delivery (SCFM)
2. Clean or replace
3. Replace leaking components or tighten as
necessary
4. Replace compressor valves
7