Carrier bryant Multi-Zone 38MARBQ24 36AA3 Series - Page 26

Outdoor Fan Error F5
Troubleshooting:
Troubleshooting:
Error may only displayed every 3 minutes, during this time you may
see either “normal display” or “88” on indoor unit or wired control.
Error Code
F5
– Outdoor Fan Problem
Indoor Unit or Wired Control Display
– F5
Dr. Smart Display (Debugger)
– E7 & E71
Malfunction decision conditions
When the indoor fan speed is too slow (300 RPM
or less) for 3 minutes or more, the unit stops and
the LED displays the Error Code for 30 seconds.
Then retries until locks out.
Supposed Causes
• Wiring mistake
• Fan motor faulty
• PCB faulty
Free up, replace any broken
parts so fan spins freely
Shut OFF the power supply.
Rotate the Indoor fan by hand.
Does the fan rotate freely?
No
Yes
Dr. Smart
Display
For Instructions on how to change
Main PCB, see Table of Contents
in beginning of this guide
Ohm out reactor, remove wires first.
Reading should be close to Zero between
terminals. Also check each connection to
ground, this should be open. If not replace.
38MAQB09~36R--3 Outdoor Units
Replace fan motor
and Main PCB
Reactor
Location
If after parts replacement,
F5 is still displayed, contact
your local CE Technical
Support Rep.
Follow the “1st Steps for DLS Troubleshooting”
in the beginning of this guide, if you have an
active error, procedure below.