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MARLO MGT 240 - User Manual

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MGT 240M–1200M
SYSTEM 14 – DEMAND
3” NXT2 SERIES METERED
MODEL NO:
SERIAL NO:
DATE INSTALLED:
DEALER:
COMPLETE FOR FUTURE REFERENCE:
Standard Photograph
Equipment appearance may differ.
Triple system shown with skid
mount option.
COMMERCIAL WATER CONDITIONER
INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
8-636

Questions and Answers

  • I
    Isaiah JohnsonSep 5, 2025
    What does 'Motor Stall No Changes Detected in the Optical Sensor for 6 Seconds' mean on my MARLO MGT 240 Water Dispenser?
    • M
      Michelle SmithSep 5, 2025
      If your MARLO Water Dispenser displays 'Motor Stall No Changes Detected in the Optical Sensor for 6 Seconds', it means that the motor is on but no encoder pulses are detected within a given duration while homing. Check the P11 connection and trigger a manual regeneration.
  • A
    Amanda TurnerNov 20, 2025
    Why does my MARLO MGT 240 Water Dispenser softener fail to regenerate?
    • J
      Jennifer SchmidtNov 20, 2025
      If your MARLO Water Dispenser softener fails to regenerate, several issues could be the cause. It could be due to an interruption in electrical service (check the fuse, plug, pull chain, or switch), a defective timer (replace the timer), or a power failure (reset the time of day). Other causes include an open by-pass valve (close it), no salt in the brine tank (add salt and maintain the level above the water level), a plugged injector screen (clean it), or insufficient water flowing into the brine tank (check the brine tank fill time and clean the brine line flow control if plugged). Hardness in the hot water tank may also be the reason (repeated flushings of the hot water tank is required), a leak at the distributor tube (make sure the distributor tube is not cracked and check the O-ring ...
  • B
    Brent MarshSep 18, 2025
    Why does my MARLO Water Dispenser show Error Valve Count Mismatch?
    • W
      Wayne ClaytonSep 18, 2025
      The 'Error Valve Count Mismatch' on your MARLO Water Dispenser means that the number of NXT2 valves detected doesn't match the system type selected in Master Programming. To fix this, push the correct valve settings in Master Settings.
  • S
    sbrownSep 16, 2025
    What to do if MARLO Water Dispenser displays Motor Stall No Changes Detected in the Optical Sensor?
    • S
      Sonya HarringtonSep 16, 2025
      If you encounter a 'Motor Stall No Changes Detected in the Optical Sensor' error with your MARLO Water Dispenser, it indicates that the motor is active, but no encoder pulses are being detected during homing. To fix this, check the P11 connection and then initiate a manual regeneration.
  • P
    Patricia SimonSep 14, 2025
    What to do if MARLO Water Dispenser shows Motor Run-On No CAM Switch Change Detected?
    • K
      Kenneth RossSep 14, 2025
      If your MARLO Water Dispenser displays a 'Motor Run-On No CAM Switch Change Detected' error, it means the motor is running, but no encoder pulses are detected, and the CAM switches aren't changing state within a specific timeframe. To resolve this, verify that the correct valve type is selected. Then, trigger a manual regeneration.
  • N
    nancyfloresSep 12, 2025
    What does 'Error Send/Receive Failure' mean on my MARLO MGT 240?
    • S
      Suzanne AllenSep 12, 2025
      If your MARLO Water Dispenser displays 'Error Send/Receive Failure', it means that during a setting push, a packet was missing. To fix this, reconnect the communication cables and push the settings in Master Settings.
  • R
    Robert PachecoSep 12, 2025
    What does 'Error System Type Mismatch on Network' mean on my MARLO MGT 240?
    • M
      Michael WarrenSep 12, 2025
      If your MARLO Water Dispenser displays 'Error System Type Mismatch on Network', it indicates that the system type among connected units does not match. To resolve this, push the correct system settings in Master Settings.
  • S
    suzanne04Sep 9, 2025
    What does 'Error Valve Count Mismatch' mean on my MARLO Water Dispenser?
    • W
      whiteamySep 9, 2025
      If your MARLO Water Dispenser displays 'Error Valve Count Mismatch', it means that the number of NXT2 detected does not match the selected system type in Master Programming. Push the correct valve settings in Master Settings to resolve this.
  • J
    Jose BennettSep 7, 2025
    Why does my MARLO Water Dispenser control cycle continuously?
    • M
      martinveronicaSep 7, 2025
      If your MARLO Water Dispenser control cycles continuously, it is caused by a misadjusted, broken, or shorted switch. Determine if the switch or timer is faulty and replace it, or replace the complete power head.
  • W
    warrendawnAug 22, 2025
    What to do if my MARLO MGT 240 Water Dispenser shows '100 Days Without Regen'?
    • K
      Kevin LittleAug 22, 2025
      If your MARLO Water Dispenser displays '100 Days Without Regen', it means that 100 days have passed without a regeneration cycle. To resolve this, trigger a manual regeneration.

MARLO MGT 240 Specifications

General IconGeneral
BrandMARLO
ModelMGT 240
CategoryWater Dispenser
LanguageEnglish

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