General Troubleshooting Flowchart - Daikin ESIE13-02 Service Manual

Troubleshooting
1 Troubleshooting
1
1.1

General Troubleshooting Flowchart

3
4
5
Part 4 – Troubleshooting
Wait until
power failure
is over.
YES
Is there a
NO
power
Doesn't run at all
failure?
Set the remote
The pump comes
controller's temperature
on but the
setting to:
compressor
(1)When
doesn't run. cooling:Minimum
(2)When
heating:Maximum
Ask for the character
code of the malfunction
code.
Is the remote
Cooling starts but
controller's operation
stops right away.
lamp blinking?
The unit won't run
Try turning the
again for a while
Operation switch OFF
and On.
after stopping.
The unit runs but
Measure the suction
doesn't cool the
/disharge temperature.
room.
(Temperature differential
=suction temperature - discharge temperature)
The units runs but
Measure the suction
doesn't heat the
/disharge temperature.
room.
(Temperature differential
=discharge temperature - suction temperature)
Troubleshooting by
Turn the power supply
remote controller
switch ON or replace
malfunction code.
the fuse.
YES
Is the remote
The power supply switch is
NO
controller's operation
OFF or the switch's fuse is
lamp blinking?
burnt.
Troubleshooting by
Normal
remote controller
malfunction code.
Runs
Is the remote
controller's operation
Doesn't run
lamp blinking?
Machines equipped with
wireless remote
controllers only.
YES
NO
Nomal
YES
Did you allow 3 minutes to
elapse after turning ON?
Runs
Operation is
normal.
Is there something causing the
indoor load to be large, such as
an open window or door?
YES
Temperature
differential is 8~18˚C
Operation is
normal.
Is there something causing the
indoor heat load to be large, such
as an open window or door?
YES
Temperature
differential is 14~30˚C
54
Refer to "Remote controller display
malfunction code and contents".
(1) The operation circuit fuse is
disconnected or is making poor
contact.
(2) The operation swich is broken or its
YES
contact is defective.
(3) The high pressure switch is broken.
NO
(4) The fan motor's magnetic switch is
broken.
(5) The fan motor's overcurrent relay is
being actuated or is broken.
(6) The compressor's overcurrent relay is
broken.
(7) The compressor's protective
thermostat is broken.
(8) The electrical system insulation is
defective.
(9) The compressor's magnetic switch's
contact is defective.
YES
(10) The compressor is broken.
(11) Thermostat is broken.
NO
(12) The cool/heat selector is broken.
(13) The operation switch is broken.
(14) The compressor's magnetic swich is
broken.
(15) Over-charged with refrigerant.
(16) Air is mixed inside the refrigerant
circuit.
(17) The pressure switch is broken.
(18) The outdoor unit fan motor's
magnetic switch is broken.
(19) The outdoor unit fan motor's
auxiliary relay is broken.
(20) The outdoor unit's heat exchanger
Cooling
is dirty.
(21) There is something blocking the
outdoor unit's air flow.
(22) Malfunction of the outdoor unit's
fan.
Heating
(23) flow error
(24) Overcurrent relay (for compressor)
(25) Compressor's protective themostat
NO
(26) The causes for the overcurrent
relay (for compressor) being
actuated are:
(26)-1 Power supply voltage is lower than
prescribed.
(26)-2 High pressure is too high.
(26)-3 The power supply cord is too small.
(26)-4 The compressor is broken.
(27) The causes for the compressor's
protective thermostat
(27)-1 Internal leak of the-4way valve
(No substantial difference between
suction and discharge temperature.
NO
(27)-2 Unsatisfactory compression from
the compressor
(27)-3 Different kind of refrigerant is
charged.
(27)-4 Malfunction of the expansion valve
(27)-5 Unsatisfactory refrigerant circulation
NO
OK.We'll be right over.
(Service work required)
ESIE13-02