Table of Contents
Advertisement
Troubleshooting for SA Indoor Unit
5.3
Fan Motor or Related Abnormality (FHQ Series)
A6
Remote
Controller
Display
Method of
The signal from the fan motor detects abnormal fan speed.
Malfunction
Detection
Malfunction
When the fan rotations are not detected while the output voltage to the fan is at its maximum
Decision
Conditions
Supposed
Causes
Troubleshooting
Note:
There is a possibility of open phase power supply, also check power supply.
366
Defective indoor fan motor
Broken or disconnected wire
Defective contact
Defective indoor unit PCB
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Check the connections of X20A
and X26A.
Are X20A or
X26A or both properly
connected?
YES
Disconnect X26A and turn the
power on.
Check the voltage between the
pins 1 and 3 of X26A.
About 12 VDC?
YES
Check the indoor unit fan motor
and motor wiring.
NO
NO
SiBE18-821_C
Connect them correctly.
Replace the indoor unit PCB.
(R12862)
Troubleshooting
- Quick Links:
- Part 2 Specifications
- Outdoor Unit
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
