Instructions / Assembly

fillrite.com
8
| DF SERIES
INSTALLATION AND OPERATION MANUAL
Problem Possible Cause Solution
Pump will not prime
1. Suction line problem
2. Closed loop coupler not properly engaged
3. Bypass valve open / sticking
4. Outlet blocked
1. Check suction line for leaks or restrictions / kinks; too small, too long, or
not airtight. RPV not locked.
2. RPV or similar coupler not properly engaged. Refer to coupler
manufacturers instructions.
3. Remove and inspect valve (page 10, item 24); valve must move freely & be
free of debris.
4. Check pump outlet, hose, nozzle & filter for blockage.
Pump runs slowly
1. Incorrect voltage
2. Motor problem
1. Check incoming line voltage while pump is running.
2. Return to place of purchase.
Motor stalls
1. Bypass valve sticking
2. Low voltage
3. Restricted suction
4. Debris in pump cavity
5. Motor failure
1. Remove and inspect valve (page 10, item 24); valve must move freely & be
free of debris.
2. Check incoming line voltage while pump is running.
3. Remove and clean suction line.
4. Clean debris from pump cavity.
5. Return to place of purchase.
Motor inoperative
1. No power
2. Switch failure
3. Motor failure
4. Incorrect / loose wiring
1. Check incoming power / Fuse (DC) / Breaker (AC).
2. Return to place of purchase.
3. Return to place of purchase.
4. Check wiring and connections.
Fluid leakage
1. Bad o-ring seal
2. Incompatible fluid
3. Loose fasteners
1. Check all o-ring gaskets.
2. USE ONLY with DEF or water.
3. Tighten fasteners.
Low or no flow rate
1. Low level in tank
2. Excessive suction requirements
3. Pump running in bypass
4. Bypass valve open
5. Air entering suction side
6. Suction line restriction
1. Refill tank.
2. Minimum 3/4" diameter suction line not to exceed rated lift. Suction line to
be 2" off bottom of tank.
3. Use shorter discharge hose, or greater diameter.
4. Remove and inspect valve (page 10, item 24); valve must move freely & be
free of debris.
5. Check suction side seals and connections.
6. Use tubing suitable with for working with suction pressure.
The following “Troubleshooting” guide is provided to offer basic diagnostic assistance in the event you encounter abnormal service from your
Fill-Rite product. Typical repairs can be accomplished with simple hand tools following the basic diagnostic information below.
Troubleshooting Guide
DO NOT open or attempt to repair the motor on your Fill-Rite pump. Return it to the place of purchase for service. Opening the motor case will
compromise the integrity of the construction and will void any existing warranty.
WARNING
WARNING
Be certain all power to the pump is turned off, and is disconnected from its power source prior to performing any service or maintenance.
CAUTION
Be certain the DEF system remains sealed while performing any service or maintenance to the pump. DEF crystalizes when it contacts air, causing
potential issues in the pump, and an open system creates the opportunity for contamination of the DEF.