Ecolab DryExxEco Advanced-ETH Operating Instructions Manual page 181

Troubleshooting
Troubleshooting for Lub-O-DryExx® Diaphragm compressed air pump
Fault description
Pump is not generating
sufficient pressure
Carrying capacity is reducing
Pump remains stationary
Pump running, insufficient
suction
Rev. 02-09.2017
Cause
Air pressure/quantity too low
Leak in air supply
Leak in air controller
Valve body/ball worn
Number of consumers higher
Air controller contaminated
Ice formation, contamination
Air pressure drop
Suction line/filter contaminated
Air line/filter contaminated
Muffler blocked
Valve body/ball worn
Change in viscosity/suction
height
Number of consumers higher
Number of consumers lower
Ice formation on air controller
Air pressure drop
Air pressure too low
Air line blocked
Air filter blocked
Valve closed
Air control faulty
Wear, blow out controller
Diaphragm broken
Valve body/ball blocked or worn
Pump is running too fast
82
Remedy
increase
repair
Replace air controller
replace
Increase air pressure/
quantity
clean/replace
Improve air treatment, dryer/
filter
Ensure air supply
clean
clean
replace
replace
change or adjust
accordingly
Increase air pressure/
quantity
Pressure rise, slower
running
Improve air treatment
Ensure air supply
increase
clean
clean
open
replace
Replace air controller
Replace diaphragms, clean
pump
clean/replace
start more slowly