Indoor Service Manual
Table Of Contents
- Cover
- Contents
- 1. SAFETY PRECAUTION
- 2. PART NAMES AND FUNCTIONS
- 3. SPECIFICATION
- 4. FAN PERFORMANCE AND CORRECTED AIR FLOW
- 5. SOUND PRESSURE LEVELS
- 6. OUTLINES & DIMENSIONS
- 7. WIRING DIAGRAM
- 8. REFRIGERANT SYSTEM DIAGRAM
- 9. HEATER CONTROL
- 10. HUMIDIFIER CONTROL
- 11. ERV (ENERGY RECOVERY VENTILATION) CONTROL
- 12. TROUBLESHOOTING
- 12-1. Cautions on troubleshooting
- 12-2. Self-check function
- 12-3. Self-diagnosis action table
- 12-4. Troubleshooting by inferior phenomena
- 12-5. Test point diagram
- 12-6. Trouble criterion of main parts
- 12-7. Thermistor
- 12-8. DC Fan motor (FAN MOTOR/INDOOR CONTROLLER BOARD)
- 12-9. Functions of dip switch and jumper wire
- 13. DISASSEMBLY PROCEDURE
- Back Cover
Specications are subject to change without notice. © 2016 Mitsubishi Electric US, Inc.
42
Exercise caution when removing heavy parts.
3. Remove the cover over the Return Air thermistor
box and unplug the thermistor.
4. Pull out the thermistor holder and thermistor inside
the box.
Fig. 4
Fig. 3
13-2. Thermistor (Return Air)
1. Remove the Filter panel (2 thumbscrews).
2. Remove the Blower panel (2 screws).
DIM.mm
CHANGE
A
B
C
D
E
F
G
H
I
J
A
B
C
D
E
F
G
H
I
J
16151413121110
987654321
16151413
121110
987654321
SCALE
3
NTS
COMMERCIAL TOLERANCE
WORK GRADE
CASTING
FINE COARSE
PRESS WORKING
GAS CUTTING
A B
SHEARING
A B
MACHINING
MEDIUMCOARSE
ED
CBA
MITSUBISHI ELECTRIC CORPORATION
DATE APPROVED
DRAWN
CHECKED
DESIGNED
3D
CONFIDENTIAL
ITEM MODEL NAME
1:15
Creo : 0_TOP_ASSY_L_21554B2.drw ( )
The parts are required to meet the latest RoHS directive.