Specifications

M-Series Water Purification Machines
1238160 Rev. D 6 - 7 Troubleshooting
TROUBLESHOOTING GUIDE
Symptom Possible Causes Remedies
Declining
rejection (high
permeate
conductivity)
Dirty or fouled sepralators
O-ring seal broken or
damaged
Change in incoming water
quality
Inaccurate conductivity
monitor fouled probe
Flush and clean the sepralators.
Replace the O-ring, check the sealing
surfaces on the O-ring groove,
interconnectors and end caps. Replace
the damaged parts.
Open the concentrate valve and flush.
Test the water for pH hardness, TDS and
iron content. A water analysis should be
sent to Mar Cor Purification for review.
Calibrated the monitor with a standard
solution or check the range with another
conductivity meter. Replace or clean the
probe. Check the connections between
the probe and monitor.
Switch on,
unit not
operating
Pressurized storage switch
or float switch has cut power
machine
Fluid temperature higher
than 100°F (38°C) or thermal
overload in motor
No power to machine
Motor and/or pump not
operating properly
Check the permeate back pressure or
position of float in the storage to tank.
Allow the machine to cool; check the
feedwater supply and/or amp draw of the
motor.
Check the fuses or circuit breakers,
measure the voltage.
See the pump instructions. Contact Mar
Cor Purification for possible repair or
replacement.
Electrical
machine
shutdown
Alarm condition has turned
off machine
Motor starter overload,
heater tripped
Timing relay
defective/burned out
Restart the machine by pushing the alarm
by-pass. Check all possible alarm
conditions: inlet pressure, or motor starter
overload.
Turn the switch off, rest the heater(s).
Check the motor amp draw and the line
voltage.
Replace the relay.