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dosatron D14MZ3000 Troubleshooting Manual
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watch our D14MZ3000 -
Troubleshooting video.
Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
D14MZ3000 Troubleshooting - Part 1
This D14MZ3000 - 14 GPM Troubleshooting Part 1 will cover: The injector is clicking,
but not drawing the concentrate.
800-523-8499
www.dosatronusa.com
NOTE: To troubleshoot your Dosatron D14MZ3000, you will need
a pair of needle nose pliers and a strap wrench.
Step 1: Take a look at the strainer. If it's clogged, just clean it and
re-test your Dosatron unit.
Step 2: If there is still no suction, unscrew the suction hose nut
and remove the suction hose.
Step 3: Slide the ferrule back.
Page 1

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Summary of Contents for dosatron D14MZ3000

  • Page 1 D14MZ3000 - www.dosatronusa.com Troubleshooting video. Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 1 This D14MZ3000 - 14 GPM Troubleshooting Part 1 will cover: The injector is clicking, but not drawing the concentrate.
  • Page 2 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 1 Step 4: Cut a half inch off the top of the hose. Step 5: Reposition the ferrule. Step 6: Then, insert the hose into the barb, and hand-tighten the nut.
  • Page 3 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 1 Step 7: After you have reinstalled the suction hose, you should start to see the liquid begin moving up the hose. If the liquid isn’t moving up the hose after a minute or so, turn the water off.
  • Page 4 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 1 Step 10: Unscrew the injection stem nut and remove. Step 11: Then, pull the injection stem straight out from the body of the injector and set aside.
  • Page 5 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 1 Step 13: To change the plunger assembly (Part #: PJDI138), grasp the white plunger rod and pull it down as far as it will go.
  • Page 6 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 1 Step 16: To install the new plunger assembly (Part #: PJDI138), align the top of the plunger with the retainer.
  • Page 7 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 1 Step 19: Align the notches in the lower part of the blue body with the two teeth on the top of the injection stem assembly.
  • Page 8 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 1 Step 22: To make sure the hose is connected securely, give it a pull. If it comes off easily, you may need to cut a half inch off the top of the hose, reset the ferrule and reattach the hose nut.
  • Page 9 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 2 This D14MZ3000 -14 GPM Troubleshooting Part 2 will cover: The injector is clicking, but water is going down into the tank.
  • Page 10 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 2 Step 4: It usually comes out in two pieces. Set the unit aside. NOTE: To inspect the check valve, carefully lift the cone from the retainer.
  • Page 11 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 2 Step 7: Don’t try to remove the spring but if it is deformed or stretched, the complete check valve assembly needs to be replaced.
  • Page 12 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 2 Step 10: Reinstall the check valve nut, hand tight. Step 11: Now, slide the hose into the barb.
  • Page 13 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 2 Step 13: To make sure the hose is connected securely, give it a pull. If it comes off easily, you may need to cut a half inch off the hose, reset the ferrule and reattach the hose nut.
  • Page 14 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 3 This D14MZ3000 - 14 GPM Troubleshooting Part 3 will cover: If the injector isn’t clicking. Step 1: Turn the water off and press the air bleed button on the top of the bell housing a few times to release the pressure.
  • Page 15 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 3 Step 4: Grasp the piston and pull it straight out. Step 5: Visually inspect the upper and lower flanges on the piston shell.
  • Page 16 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 3 Step 7: To test the lower flange, position the needle nose pliers near the top of the plunger.
  • Page 17 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 3 Step 10: To replace the upper flange (Part #: PDI643), grasp and twist it counter clockwise. Step 11: Remove by lifting straight up.
  • Page 18 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 3 Step 13: Press it down into place and twist clockwise until it locks. Step 14: To replace the lower flange (Part #: PDI644), grasp and twist it counter clockwise.
  • Page 19 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 3 Step 16: To install the new lower flange, align the tooth inside the flange with the notch in the piston shell.
  • Page 20 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 3 Step 19: Reinstall the plunger by aligning the top with the retainer. Step 20: Use the needle nose pliers and twist it a quarter turn clockwise to lock.
  • Page 21 800-523-8499 www.dosatronusa.com Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron. D14MZ3000 Troubleshooting - Part 3 Step 22: Reinstall the blue bell housing, hand tight. To learn more, scan the QR codes below for more information.

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