Fisher FSI-95HFD Service Manual page 34

Is connector connection good?
Is voltage being applied to the fan motor?
(rang 90v-160v between mid pin and N on CN1
Indoor fan motor is defective
Replace indoor fan motor.
13.1.5
Display
E5
Is connection to connector good?
If display E5 all the same, replace indoor main PCB.
13.1.6
Display
E6
Is connection to connector good?
If display E6 all the same, replace outdoor main PCB.
13.1.7
Display
P0
30
Yes
Yes
Open or short circuit of outdoor temperature sensor
Yes
Replace the sensor
Room temperature or evaporator temperature sensor open or short circuit
yes
Replace the sensor
Service manual
No
Indoor PCB is defective
Replace indoor main PCB.
LED STATUS
No
LED STATUS
No
Repair connector
LED STATUS
Module protection
No
Repair the connector.
Repair connector