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Thermo Scientific
Troubleshooting
Section 10
Problem
EASYpure RODI completely
inactive. (Pump not operating,
display not lit, etc.)
Note: When unit is powered
and not operating, nor in stand-
by, "IdL" will normally be dis-
played.
Pump does not run. Display
showing purity information.
Recirculated water will not
rinse up to desired purity level.
Possible Causes
No electrical power to
EASYpure RODI.
Membrane key switch leads
not connected.
Main power switch off.
Fuses blown or not installed
properly. Check to make sure
proper fuses were installed.
Loose wire connection to pump.
Display/control board is defec-
tive.
Pump worn out or defective.
Exhausted cartridge
Cartridges out of order.
Dirty resistivity cell.
Water path restriction.
Resistivity meter board out of
tolerance.
Action
Ensure that the EASYpure RODI
power cord is connected to a
live power source and complete-
ly plugged into electrical outlet.
Disconnect unit from power.
Check and reconnect.
Place to "On" position.
Replace the fuses as indicated
in the Fuse Replacement sec-
tion.
Ensure pump is properly con-
nected to display/control.
Call Technical Service.
Replace pump. Call Technical
Service.
Replace the cartridge as indicat-
ed in the Cartridge Replacement
section.
Install the cartridges in the
proper order as indicated in
Cartridge Installation.
Clean resistivity cell as indicat-
ed in the Maintenance and
Servicing section.
Check tubing for constriction
(kinks) or blockages.
Replace board. Call Technical
Services.
EASYpure RoDi
10-1
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