Husky 1800 Series Service and Troubleshooting, Pump Wont Start, Pump hums but wont start

Service and Troubleshooting

TROUBLESHOOTING

If problems are encountered in operation of the pump, follow the procedures below in an attempt to isolate the problem. When the problem is detected, follow the procedures for disassembly of the pump.

Pump Won't Start

✓Is the breaker at the panel turned on?

✓Is the Aux AC Control wire capped or connected to a solenoid valve or fuel management system?

✓Is there power at pump? Check at junction box. Voltage cannot be below 104 volts on a 115V pump; 204 on a 230V pump.

✓Is switch rod turning the switch on and off at the motor?

✓Is motor overheated (thermal switch cutoff)? Be careful, the external motor surface could be hot enough to be painful or cause injury. Let cool and re-try.

!Replace motor if above checks do not solve the problem.

Pump hums but won't start.

✓Is voltage adequate? Check voltage with pump on bypass with nozzle closed. Voltage cannot be below 104 volts on a 115V pump; 204 on a 230V pump.

✓Is the Aux AC Control wire is capped or connected to a solenoid valve or fuel management system?

✓Check rotor, vanes, and bypass valve for free operation. Check motor with rotor and vanes removed; shaft should turn easily and smoothly by hand. Spin shaft by hand clockwise, quickly start motor (hand clear of shaft) and observe shaft - shaft should stop clockwise motion and turn in a counterclockwise direction; if it does not, replace motor.

!Replace motor if above checks do not solve the problem.

Pump runs but won't prime or deliver product.

✓Is there gas in tank?

✓Do you have a nozzle with the anti-drain valve removed? (Must be able to blow air through the nozzle in the direction the fuel flows through it when the nozzle handle is held open.) Use GASBOY P/N 038519 for unleaded and 038520 for diesel.

✓Loosen pump cover and slide aside so you can observe the rotor and vane movement inside the pump cavity. Rotor should be turning freely in a counter-clockwise motion. If rotor turns clockwise, motor is bad.

✓If register is recording but no product is being dispensed, you may have a supply line air leak.

✓Check for an air leak on suction side of pump. Is check valve seated properly? Reassemble and prime pump using liberal quantity of motor oil in pump cavity; if it primes, run pump full flow and snap nozzle closed; shut off motor and check for leak on suction side of pump above check valve. Any observed liquid leakage would indicate an air leak when pump is running with nozzle open and would prevent priming when pump was empty.

✓Are bypass, strainer, and check valve cover plates flat? They could be bent from excessive pressure created by a vehicle running over the hose.

✓Is there an air leak in the suction line below check valve. Make accuracy check using 5 gal Seraphim test can. Any clock fast error (see Inaccurate Delivery) in excess of 2-1/2% indicates an air leak in the suction line. The most common source of an air leak in the suction line is the union - check union for alignment and tightness before checking balance of suction line. If pump does not prime using oil, suction line is blocked or has a severe air leak.

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