Tennant T5 - Page 39

MAINTENANCE
Tennant T5 (06- 15)
39
TROUBLESHOOTING - Continued
PROBLEM CAUSE SOLUTION
FaST Model: FaST System does
not operate or operate correctly
FaST system switch is not turned on Turn on FaST system switch
FaST- PAK supply hose not connected Connect supply hose
Clogged FaST- PAK supply hose or
connectors
Soak in warm water to unclog
Empty FaST- PAK carton Replace FaST- PAK carton
Kink in FaST- PAK supply hose Undo hose kink
Clogged FaST solution system Contact Service Center
Faulty FaST system on/off switch Contact Service Center
Faulty pump Contact Service Center
Clogged solution tank filter Drain solution tank. Remove solution
tank filter, clean and reinstall
Clogged detergent orifice/filter screen Replace orifice/filter screen
(See FaST SYSTEM
MAINTENANCE)
Clogged FaST solution inlet filter Contact Service Center
Faulty control board Contact Service Center
ec-H2O NanoClean Models (ec-H2O models labeled ec-H2O NanoClean)
PROBLEM
CAUSE SOLUTION
ec-H2O system indicator
light blinking green/red
W ater conditioning cartridge has expired Replace cartridge (See ec-H2O NanoClean
WATER CONDITIONING CARTRIDGE
REPLACEMENT)
ec-H2O system indicator
light is red or blinking* red
ec-H2O system fault has been detected Contact Service Center
*Verify if cleaning detergent was added to solution tank. If ec-H2O system was operated with cleaning detergent, drain solution
tank, add clear water and operate the ec -H2O system until the indicator light code clears.
ec-H2O Models (Manufactured before ec-H2O NanoClean models)
PROBLEM
CAUSE SOLUTION
ec- H2O system indicator light
blinks red and alarm sounds
Mineral deposit build- up in module Flush module (See ec- H2O MODULE
FLUSH PROCEDURE). If indicator
light starts flashing within 1- 10
seconds, repeat flush procedure. If in-
dicator light starts flashing after a
minute of scrubbing, the water may
have low conductivity.
Low water conductivity Add17mlofsalttoevery85Lof
water.
ec- H2O system indicator light
solid red
Defective module Contact Service Center
ec- H2O system indicator light
does not turn on
Defective light or module Contact Service Center
No water flow Clogged module Contact Service Center
Defective solution pump Replace solution pump