QED AutoPump AP-2, Operation Manual

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QED Environmental Systems
AP-2 Manual
Page 54
Chapter 7: Troubleshooting & Repairs
Problems may occur and usually can be easily resolved by following these instructions. If,
after careful reading and service, you cannot resolve the problem, please contact the QED
Environmental Systems (QED) Service Department at (800) 537-1767.
Caution:
Wear goggles, gloves, and coveralls when servicing this system.
After troubleshooting is completed and before assembling the pump, slowly
move the float through its range to ensure that the lever will trip even if the
pump fills and empties slowly.
Note:
See Chapter 6: Maintenance for disassembly and cleaning instructions.
Possible Causes
Detailed Instructions
Follow this Chart
Pump not cycling Pump Cycles, but
volume is reduced or
there is no discharge
Air in fluid discharge
1. Air supply X X
2. Fluid level X
3. Air exhaust restricted X X
4. Fluid Inlet clogged X
5. Debris, scale or very
viscous fluid
6. Float pins X X
7. Debris in air inlet
valve
8. Fluid check valve X
9. Valve timing X
X
Symptoms
X X X