AmeriWater MRO3, Operation & Maintenance Manual

Page: 44 / 54

MRO 3 & 4 MANUAL
41
98-0140
Rev. F
SECTION 9 TROUBLESHOOTING AND REPAIR
9.1 TROUBLESHOOTING CHART
WARNING: Only those persons who have read the complete operations manual or
who have received authorization from the medical facility director should
attempt to troubleshoot and/or repair the MRO system.
To assist you in quickly restoring your system into service, AmeriWater will send your
replacement part out immediately and check your bad part when it comes in to verify if it is
covered under your equipment warranty.
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
MRO will not start MRO not plugged in
Circuit breaker blown
MRO in a FAULT condition
Plug into electrical outlet.
Reset the breaker.
Check MRO controller
display for FAULT condition
and correct the FAULT.
System has power but no
water flow Feed source not open
Feed pressure < 20 PSI
Incoming hose kinked
Circuit board relay is not
operating
Open Incoming Tap Water
valve.
Increase pressure to > 20
PSI.
Straighten kinks from the
INCOMING TAP WATER
hose.
Replace the controller circuit
board (Section 9.2)
System has power but no
water flow (continued) Feed solenoid is not
operating Test the solenoid (Section
9.5). Replace the valve if it
is defective (see Section
9.6).
Disinfect cycle will not
operate when holding the
ENTER key DISINFECT MODE has not
been accessed correctly.
Circuit board relay not
operating in DISINFECT
MODE.
Disinfect Solenoid Valve not
operating
Access DISINFECT MODE
(see Section 5.1).
Replace the controller circuit
board (see Section 9.2).
Test solenoid valve (Section
9.5). Replace the valve if it
fails (Section 9.6).