240
The indoor fan motor is burned or breaks or
has the heat protector malfunction.
Replace the fan motor or the defective part.
The built-in heat protector of the motor
breaks
frequently because the motor is
abnormal.
Replace the fan motor
Wrong connection
Make the correction connection based on the
circuit
drawing.
The fan does not
run when it is set
to supply air.
The fan capacitor has open circuit or is
dama-
ged.
Replace the fan capacitor of the same type and
same
specification.
The outdoor fan motor is damaged.
Replace the fan motor
Wrong connection
Make the correct connection based on the circuit
drawing.
In the cooling and
heating mode, the
compressor runs,
but the outdoor
fan does not run.
The outdoor fan capacitor is damaged.
Replace the fan capacitor
Malfunction of compressor
Replace the compressor
Breakage of running capacitor of compressor
Replace the capacitor
The voltage is too low or too high.
Manostat is recommended.
Wrong wire connection
Connect the circuit diagram correctly
When cooling or
heating, outdoor
fan runs,
compressor
doesn't run.
The protector itself has malfunction.
Use the multimeter to check whether the contact of
the compressor is on when it is not overheated. If it
is not on, then replace the protector
The refrigerant is not enough or is too mu
ch.
Adjust the volume of the refrigerant
The capillary is blocked and the temperature
rises.
Replace the capillary
The compressor does not run smoothly or is
stuck. The air discharge valve is damaged
Replace the compressor
The compressor is
too hot and leads
to
the action of
the
protector.
The protector itself has malfu
nction.
Replace the protector
The torque of the swing motor is not enough
wrong connection
The swing fan
does
not run.
The controller is damaged
• •
IC2003 is
damaged, the swing relay can not close,
etc
• •
First, check whether the connection is wrong. If
no,
replace the parts
Troubleshooting Guide
Summary of Contents for EVJC 12
Page 2: ...74 74...
Page 30: ...102...
Page 32: ...104 www johnsoncontrols com...
Page 34: ...106 by johnson controls 2...
Page 46: ...118...
Page 48: ...120 www johnsoncontrols com...
Page 49: ...121 High Wall EVHC 09 to 12 DSAAAR SERVICE MANUAL SM EVHC D 09 12GB 05 10 EVHC 09 EVHC 12...
Page 65: ...137 LULQJ LDJUDP Schematic Diagram Indoor Unit Schematic Diagram...
Page 66: ...138 Schematic Diagram Outdoor Unit...
Page 69: ...141 TOP VIEW Schematic Diagram BOTTOM VIEW 1 3 4 5 6 2 7 8 9 10 11 12 Outdoor Unit...
Page 113: ...185 Exploded View Exploded View Indoor Unit...
Page 114: ...186 Exploded View Outdoor Unit...
Page 118: ...190 High Wall EVHC 18 to 24 DSAAAR SERVICE MANUAL SM EVHC D 18 24GB 05 10 EVHC 18 EVHC 24...
Page 132: ...204 LPHQVLRQV Dimensions QGRRU 8QLW Tube exit Air inlet Right Left Ceiling W D H 02 18K 24K...
Page 133: ...205 890 340 955 560 380 424 700 60cm 60cm 60cm 60cm LPHQVLRQV Outdoor Unit Bolt Nut Spanner...
Page 140: ...212 TOP VIEW Schematic Diagram BOTTOM VIEW 1 2 3 4 5 6 7 8 9 7 8 9 10 11 12 13 1 2 3 4 5 6 10...
Page 142: ...214 Schematic Diagram Key testing spot bottom...
Page 197: ...269 Exploded View Exploded View Indoor Unit 78 Model EVKC 18 DS...
Page 198: ...270 Exploded View Model EVKC 24 DS 79...
Page 199: ...271 Exploded View Outdoor Unit 80...