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HX5100, HX5101
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Troubleshooting Chart (Continued)
Symptom Possible Cause(s) Corrective Action
4. Tank leaks 4. Check tank for leaks with soap and water solution.
If leak is detected, tank must be replaced with
genuine replacement part.
Do not disassemble
check valve with air in tank;
bleed tank
Compressor runs continuously
and air output is lower than
normal/low discharge pressure
1. Excessive air usage, compressor too small
2. Clogged intake filter
3. Loose connections at fittings, tubing, etc.
4. Tank leaks
5. Broken valves
6. Piston ring worn
1. Decrease usage or purchase unit with higher air
delivery (SCFM).
2. Clean or replace.
3. Check all connections with soap and water solution.
If a leak is detected, (1) tighten or (2) remove fitting
and apply pipe tape to threads and reassemble.
4. Check tank for leaks with soap and water solution.
If leak is detected, tank must be replaced with
genuine replacement part.
5. Replace compressor valves as necessary.
6. Replace piston and cylinder.
Excessive moisture in discharge
air
1. Excessive water in tank
2. High humidity
1. Drain tank.
2. Move to area of less humidity; use air line filter.
NOTE: Water condensation is not caused by
compressor malfunction.
Compressor runs continuously
and safety valve opens as
pressure rises
1. Defective pressure switch
2. Defective safety valve
1. Replace switch.
2. Replace safety valve with genuine replacement
part.
Excessive starting and stopping
(auto start)
1. Excessive condensation in tank
2. Loose connections at fittings, tubing, etc.
3. Tank leaks
1. Drain more often.
2. Check all connections with soap and water solution.
If a leak is detected, (1) tighten or (2) remove fitting
and apply pipe tape to threads and reassemble.
3. Check tank for leaks with soap and water solution.
If leak is detected, tank must be replaced with
genuine replacement part.
Do not disassemble
check valve with air in tank;
bleed tank
Air leaking from unloader valve
on pressure switch
1. Check valve stuck in an open position
2. Unloader valve stuck in open position
1. Repair or replace check valve.
2. Repair or replace unloader valve.
Do not disassemble
check valve with air in tank;
bleed tank