Problem Symptoms And Measures - Daikin FTK25JV1NB Manual

Si-86.book Page 54 Friday, June 23, 2000 10:26 AM

Problem Symptoms and Measures

2. Problem Symptoms and Measures

Problem Symptom
None of The Units Operates.
Operation Sometimes Stops.
Some indoor units do not
operate.
Equipment operates but does
not cool, or does not heat (only
for heat pump model).
Large Operating Noise and
Vibrations
54
Check Item
Check the power supply.
Check the type of the indoor units.
Check the outside air temperature.
Diagnosis with indoor unit LED indication
Diagnosis with outdoor unit LED
indication
Check the remote controller addresses.
Check the power supply.
Check the outside air temperature.
Diagnosis with indoor unit LED indication
Diagnosis with outdoor unit LED
indication
Check the type of the indoor units.
Diagnosis with indoor unit LED indication
Diagnosis with outdoor unit LED
indication
Check for thermistor detection errors.
Diagnosis with indoor unit LED indication
Diagnosis with outdoor unit LED
indication
Diagnosis by service port pressure and
operating current
Check the output voltage of the power
transistor.
Check the power transistor.
Check the installation condition.
Details of Measure
Check to make sure that the rated voltage is supplied.
Check to make sure that the indoor unit type is
compatible with the outdoor unit.
Heating operation cannot be used when the outside
temperature is 30˚C or higher (only for heat pump
model), and cooling operation cannot be used when
the outside temperature is below 0 ˚C.
—
—
Check to make sure that address settings for the
remote controller and indoor unit are correct.
A power failure of 2 to 10 cycles can stop air
conditioner operation. (Operation lamp OFF)
Heating operation cannot be used when the outside
temperature is 30˚C or higher (only for feat pump
model), and cooling operation cannot be used when
the outside temperature is below 0˚C.
—
—
Check to make sure that the indoor unit type is
compatible with the outdoor unit.
—
—
Check to make sure that the main unit's thermistor
has not dismounted from the pipe holder.
—
—
Check for insufficient gas.
—
—
Check to make sure that the required spaces for
installation (specified in the Technical Guide, etc.) are
provided.
SIE-86
Page No.
to be
referred
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58
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58
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58
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58
82
78
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Service Diagnosis