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TROUBLESHOOTING CHART

10

SYMPTOM

POSSIBLE CAUSE(S)

CORRECTIVE ACTION

Motor will not run

1. Disconnect switch is off

1. Be sure switch is on

2. Fuse is blown

2. Replace fuse

3. Starting switch is defective

3. Replace starting switch

4. Wires at motor are loose, 

4. Refer to instructions on wiring. Check and tighten all wiring. 

disconnected, or wired incorrectly

5. Pressure switch contacts are dirty

5. Clean by sliding pieces of plain paper between contacts

Motor runs hot and  1. Motor is wired incorrectly

1. Refer to instructions on wiring

overload kicks off

2. Voltage is too low

2. Check with power company. Install heavier wiring if wire 

size is too small. See wiring instructions

3. Pump cycles too frequently

3. See section below on too frequent cycling

Motor runs but no

1. Pump in new installation did 

1. In new installation:

water is delivered

not pick up prime through: 
a. Improper priming 

a. Re-prime according to instructions

b. Air leaks

b.  Check all connections on suction line, air volume control, and jet

c. Leaking foot valve

c. Replace foot valve

2. Pump has lost prime through:

2. In installation already in use:

a. Air leaks

a. Check all connections on suction line, air volume control, 

jet and shaft seal

b. Water level below suction 

b. Lower suction line into water and re-prime. If receding water level 

of pump

in well exceeds suction lift, a deep well pump is needed

3. Jet or impeller is plugged

3. Clean jet or impeller according to instructions

4. Check valve or foot valve is stuck 

4. Replace check valve or foot valve

in closed position

5. Pipes are frozen

5. Thaw pipes. Bury pipes below frost line. Heat pit or pump house.

6. Foot valve and/or strainer are 

6. Raise foot valve and/or strainer above well bottom

buried in sand or mud

Pump does not 

1. Water level in well is lower than 

1. A deep well jet pump may be needed (over 20 ft. to water)

deliver water to full

estimated

capacity (Also

2. Steel piping (if used) is corroded or 

2. Replace with plastic pipe where possible, otherwise with new steel pipe 

check point 3

limed, causing excess friction

immediately above)

3. Offset piping is too small in size

3. Use larger offset piping

Pump pumps water

1. Pressure switch is out of adjustment

1. Adjust or replace pressure switch

but does not shut 

or contacts are “frozen”

off

2. Faucets have been left open 

2. Close faucets

3. Jet or impeller is clogged

3. Clean jet or impeller

4. Water level in well is lower than

4. Check possibility of using a deep well jet pump

estimated

5. Motor is wired incorrectly

5. Refer to instructions on wiring

Pump cycles too 

1. Standard pressure tank is water- 

1. Drain tank to air volume control tapping. Check air volume control for

frequently

logged and has no air cushion

defects. Check for air leaks at any connection

2. Pipe leak 

2. Check connections

3. Faucets or valves are open

3. Close faucets or valves

4. Foot valve leaks

4. Replace foot valve

5. Pressure switch is out of adjustment

5. Replace pressure switch

6. Air charge too low in 

6. Disconnect electrical power and open faucets until all pressure is 

Captive Air

®

Tank

relieved. Using automobile tire pressure gauge, check air pressure in tank
at the valve stem located at top of tank. If air pressure is lower, pump air
into tank from outside source until proper air pressure is reached. Check
air valve for leaks, using soapy solution, and replace core if necessary.

Air spurts from

1. Pump is picking up prime

1. As soon as pump picks up prime, all air will be ejected

faucets

2. Leak in suction side of pump

2. Check suction piping

3. Well is gaseous 

3. Change installation as described in manual

4. Intermittent over-pumping of well

4.  Lower foot valve if possible, otherwise restrict discharge side of pump

Summary of Contents for CRAFTSMAN HYDROGLASS 390.250284

Page 1: ...Instructions Before First Use of This Product Save This Manual For Future Reference Sears Roebuck and Co Hoffman Estates IL 60179 U S A Safety Instructions Installation Operation Troubleshooting Repa...

Page 2: ...izing is essential to proper motor operation Recommended fusing and wire size data is in the manual Page 5 11 Pump water only with this pump 12 Periodically inspect pump and system components Motor no...

Page 3: ...ot valve and strainer should be installed for easy priming It should be five to ten feet below the lowest level to which the water will drop while pump is operating pumping water level The strainer sh...

Page 4: ...pump is very similar to cast iron pumps We ask however that you keep the following points in mind IMPORTANT Use teflon tape supplied with the pump for making all threaded connections to the pump it s...

Page 5: ...switch as shown in Figure 4 5 FIGURE 4 Motor wiring connections through Pressure Switch Match motor voltage to line voltage Your Motor Terminal Board under the motor end cover and Pressure Switch look...

Page 6: ...o a point below the freeze line To drain an air volume control AVC remove the tubing from it and turn the AVC upside down This will permit any water in the AVC to drain into tank Disassembly and Assem...

Page 7: ...eum jelly or de tergent solution C With finger pressure press firmly and squarely into cavity Polished face of seat faces inside of pump If seat will not locate properly place cardboard washer over po...

Page 8: ...Page 11 stays in place on top of diffuser Installing Copper Insert NOTE If the copper insert Key No 4 Page 11 moves or shifts during seal removal it should be removed and rein stalled 1 Remove copper...

Page 9: ...ction as the dislodging tool was inserted 4 Replace nozzle and venturi Do not overtighten 5 Reassemble per pump instructions on Page 6 HELPFUL HINTS How to Handle a Gaseous Well In some areas well wat...

Page 10: ...es not 1 Water level in well is lower than 1 A deep well jet pump may be needed over 20 ft to water deliver water to full estimated capacity Also 2 Steel piping if used is corroded or 2 Replace with p...

Page 11: ...C78 41T 1 Pipe Plug 1 8 NPT 14 U111 212T 2 90 Hose Barb 15 U37 669P 1 Switch Tube 16 J20 18 1 Gasket 17 N76 29P 1 Pump Body Jet Insert 18 U30 742SS 4 Capscrew 10 16 19 N34P 19 1 Nozzle 45 20 N32P 66 1...

Page 12: ...5 pm Monday Saturday 1 800 827 6655 M A I N T E N A N C E A G R E E M E N T America s Repair Specialists REPAIRSERVICES America s Repair Specialists REPAIRSERVICES America s Repair Specialists REPAIR...

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