47
Problem
Possible Causes
Solutions
DIamond TII completely
No electrical power to
Ensure DIamond TII power
inactive (pump and display
DIamond TII.
cord is connected to a live power
not operating.)
source and completely plugged into
electrical outlet as well as power entry
module on the unit. Make sure on/off
switch is in the “I” (on) position.
Main fuse(s) blown.
Replace the main fuse(s) as indicated
in “Fuse Replacement.”
Display not connected or
Check display connection.
remote display cable is loose.
Power supply fuse blown
Contact customer service concerning
power supply fuse replacement.
RO system is operating but
Flush solenoid plugged.
Perform a system flush.
no water is exiting out the
atmospheric drain connection.
Increase in time required
Membranes fouled.
Replace membranes.
to replenish reservoir.
Low feedwater pressure.
Verify feedwater pressure is
30 psi minimum.
Short DI cartridge pack life.
Cartridge pack is beyond
Check the expiration date. Cartridge
expiration date.
packs begin to lose capacity after
being stored for 2 years from the date
of manufacture. Replace the cartridge
pack with an unexpired one.
Poor quality feed water.
Check that the RO membranes are
functioning properly.
Troubleshooting
