Carrier bryant Multi-Zone 38MARBQ09 18AA3 Series Service Manual page 10

40MBDQ09~58--3 Ducted
Water Level Alarm EE
Error Code
Indoor Unit or Wired Control Display
EE
Malfunction decision conditions
Supposed Causes
Troubleshooting:
Follow the "1st Steps for DLS Troubleshooting"
in the beginning of this guide, if you have an
active error, procedure below.
Is there standing water
in drain pan?
Is drain line for
clogged?
Clear drain and
restart system.
EE error will lock out the system and display
EE until error is fixed or system restarted
No
Yes
No
Yes
EE – Water Level Switch Activated
Dr. Smart Display (Debugger)
No Error Displayed
If the sampling voltage is not 5V
• Drain clogged
• Water level switch stuck/bad
• Water pump faulty
• Water indoor unit PCB
Check float switch.
If stuck open, repair or replace.
Does internal or external
drain pump have power to
it during Cooling operation?
CN13 220VAC
No
Replace PCB Pump
is connected to.
If after parts replacement, error
is still displayed, contact your
local CE Technical Support Rep.
Yes
Replace Pump.