Glenko MAM-870, Instruction Manual

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Instruction Manual ZS100T, ZS150T & ZS200T Series II (MAM-870) Senator Industrial Air Compressors
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5.2 Troubleshooting Chart
Symptom Possible Cause Corrective Action
Compressor fails
to start up.
1. Fuse is ruptured.
2. Power supply voltage is too low.
3. Phase-loss or error-phase.
4. Loose wiring or poor contact.
5. Motor failure.
6. Air end failure.
1. Investigate cause and replace fuse.
2. Investigate and rectify electricity
supply.
3. Restore phase loss or re-connect
the wire.
4. Check and tighten all connections.
5. Repair or replace motor.
6. Repair or replace air end.
Too high air
discharge
temperature
(≥105°C).
1. Insufficient lubricating oil.
2. Too high ambient temperature.
3. Oil cooler fins are blocked.
4. Oil filter is blocked.
5. Thermostatic valve is faulty.
6. Incorrect grade of lubricating oil.
7. Cooling fan is faulty.
8. Temperature sensing element is
damaged.
1. Check oil level in oil-air tank.
2. Improve ventilation conditions and
reduce room temperature.
3. Clean oil cooler fins.
4. Replace oil filter.
5. Check whether oil is cooled down
via oil cooler. If not, repair or
replace thermostatic valve.
6. Change to correct grade of
lubricating oil.
7. Repair or replace cooling fan and
fan motor.
8. Check or replace temperature
sensing element.
Too low air
discharge
temperature
(≤75°C).
1. Very low ambient temperature.
2. Thermostatic valve is faulty.
3. Temperature sensor is incorrect.
1. Reduce radiating area of cooler.
2. Repair or replace thermostatic
valve.
3. Check and replace temperature
sensing element.
Air supply
pressure is below
rated discharge
pressure.
1. Pressure settings are too low.
2. Air consumption of the user is
higher than air supply amount.
3. Air filter is blocked.
4. Inlet valve isn’t opening fully.
5. Pressure sensor is faulty.
6. Minimum pressure valve is faulty.
7. Oil-air separator is blocked.
1. Check the controller’s pressure
settings.
2. Reduce air consumption and/or
check air piping system for
leakage.
3. Clean or replace air filter element.
4. Check the action of inlet valve.
5. Check or replace pressure sensor.
6. Check and repair minimum
pressure valve.
7. Check and replace oil-air
separator.
Air supply
pressure is above
the setting of
unloading
pressure.
1. Pressure settings are too high.
2. Unloading parts (such as solenoid
valve ‘C’ in air inlet control valve,
vent valve, etc.) are faulty.
3. Leakage in control air piping.
4. The filter in control air piping is
blocked.
5. Pressure sensor is faulty.
1. Check the controller’s pressure
settings.
2. Check unloading parts for normal
operation.
3. Check and rectify leakage.
4. Clean or replace the filter
assembly.
5. Check or replace pressure sensor.