Yetter 2940 Short Floating Air Adjust Residue Manager - Manual (Page 84)

84
COMPRESSOR TROUBLE SHOOTING
TOUBLESHOOTING CHART
PROBLEM PROBLEM CAUSE(S) CORRECTIVE ACTION
Tank pressure drops 1. Check valve leaking
when compressor 2. Loose connections
shuts off
Compressor runs 1. Excessive air usage 1. Decrease air usage
continuously and air 2. Loose connections 2. Check all connections with soap and
flow lower than
normal
3. Worn piston ring or inlet valve
water solution and tighten
3. Replace compressor
4. Clogged air filter element
5. Bad pressure switch
6. Defective safety valve
4. Replace air filter element
5. Replace pressure switch
6. Replace safety valve
Excessive moisture in 1. Excessive water in air tank 1. Drain tank, Drain tank more frequently
discharge 2. High Humidity 2. Move compressor to area with less
humidity, or use air line filter
CAUTION: NEVER DISASSEMBLE COMPRESSOR WHILE COMPRESSOR IS PRESSURIZED.
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Compressor will not
run
1. No power, or power switch is OFF 1. Make sure compressor switch is ON
position 2. Disconnect compressor from power
2. Blown fuse source, replace fuse (Refer to
3. Motor overheats Specifications section for correct fuse
4. Pressure switch bad. amperage
3. Let compressor cool off for about 30
minutes to allow thermal overload switch
reset
4. Replace pressure switch
Thermal Overload 1. Lack of proper ventilation or 1. Move compressor to well ventilated
Protector cuts out ambient temperature is too high
area, or area with lower ambient
temperature
repeatedly 2. Compressor valves failed 2. Repair or replace compressor
Excessive Knocking 1. Loose mounting bolts 1. Tighten bolts
or rattling
2. Worn bearing on eccentric or motor
shaft
2. Replace compressor
3. Cylinder or piston ring is worn 3. Rebuild compressor
1. Replace check valve or compressor
2. Check all connections with soap and
water solution and tighten