
(106) MODEL 638 FILTER PUMP ENGLISH 7.5” X 10.5” PANTONE 295U 01/29/2007
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TROUBLESHOOTING GUIDE
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  | TROUBLE  | 
  | CHECK  | 
  | POSSIBLE SOLUTIONS  | 
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  | FILTER MOTOR  | • Not plugged in.  | • Filter cord must be plugged into a 3 wire  | 
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  | FAILS TO START  | • Fuse box needs checking.  | 
  | outlet that is protected by a Class A  | 
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  | • GFCI/RCD circuit breaker  | 
  | Ground Fault Circuit Interrupter, or RCD.  | 
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  | tripped.  | •  | Reset circuit breaker. If circuit breaker  | 
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  | trips repeatedly, your electrical system  | 
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  | may have a defect. Turn off circuit  | 
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  | breaker and call an electrician to  | 
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  | correct the problem.  | 
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  | • Motor too hot and overload protection  | 
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  | shut motor off. Let motor cool down.  | 
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  | FILTER DOESN’T  | • Improper chlorine or pH  | • Adjust chlorine and pH level. Consult  | 
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  | CLEAN POOL  | 
  | levels.  | 
  | your local swimming pool supply stores.  | 
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  | •  | Filter cartridge dirty.  | •  | Clean or replace cartridge.  | 
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  | • Cartridge damaged.  | • Check for holes in cartridge. Replace  | 
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  | • Excessively dirty pool.  | 
  | if damaged.  | 
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  | •  | Strainer screen restricting  | •  | Operate filter for longer periods.  | 
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  | flow.  | •  | Clean strainer screen at pool wall inlet.  | 
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  | FILTER DOESN’T  | • Inlet/discharge clogged.  | • Look for obstructions in intake hose or  | 
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  | PUMP WATER OR  | • Air leak on intake line.  | 
  | discharge hose inside pool wall.  | 
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  | FLOW IS VERY  | • Scale or buildup on cartridge.  | • Tighten hose clamps, check hoses for  | 
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  | SLOW  | • Excessively dirty pool.  | 
  | damage, check pool water level.  | 
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  | •  | Filter cartridge dirty.  | •  | Replace cartridge.  | 
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  | • Clean cartridge more often.  | 
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  | PUMP DOESN’T  | • Low water level.  | • Fill pool to correct water level.  | 
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  | WORK  | • Strainer screen plugged up.  | • Clean strainer screens at pool inlet.  | 
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  | • Air leak on intake hose.  | •  | Tighten hose clamps, check hose for  | 
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  | • Faulty motor or impeller  | 
  | damage.  | 
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  | jammed.  | • Check & clear any sticks or leaves in  | 
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  | • Air lock inside cartridge  | 
  | intake to pump.  | 
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  | chamber.  | • Open release valve at top of pump.  | 
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  | TOP COVER  | •   | • Remove cover & check for   | 
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  | LEAKING  | • Cover not tight.  | • Tighten cover (Manually).  | 
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  | •  | Filter cartridge dirty.  | •  | Replace or clean cartridge.  | 
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  | HOSE LEAKING  | • Hose clamps.  | • Tighten/change hose clamps.  | 
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  | AIR LOCK  | • Pump housing and inlet hose  | • Open air release valve, lift and lower  | 
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  | air trapped.  | 
  | the inlet hose until water starts to flow  | 
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  | out of the air release valve, close air  | 
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  | release valve.  | 
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  | •  | The white inserts at both ends of the hoses shall remain inside and  | 
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  | shall be firmly inserted in the hose. Do not remove the white inserts  | 
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  | HOSE  | 
  | from the hoses. These white inserts are not serviceable parts.  | 
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  | •  | To facilitate the connection of the hoses into the black protruding hose  | 
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  | INSERT  | 
  | connectors on the pool wall, you may use soapy water solution (mix 6  | 
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  | drops of dish detergent in 1/2 a cup of water) to lubricate the inserts  | 
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  | by simply dipping the hose ends into the solution. Continue per  | 
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  | owner’s manual.  | 
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  | •  | Do not use lubricants such as machine or industrial oil or grease.  | 
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SAVE THESE INSTRUCTIONS
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