Troubleshooting By Symptoms - Daikin D Series Service Manual

Troubleshooting by Symptoms

2.

Troubleshooting by Symptoms

Symptom
None of the units
operates.
Operation sometimes
stops.
Equipment operates but
does not cool.
Large operating noise and
vibrations
98
Check Item
Check the power supply.
Check the type of the indoor units.
Check the outside air temperature.
Diagnose with remote controller
indication.
Check the remote controller
addresses.
Check the power supply.
Check the outside air temperature.
Diagnose with remote controller
indication.
Check for thermistor detection
errors.
Diagnose with remote controller
indication.
Diagnose by service port pressure
and operating current.
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.
Operation cannot be used when the outside
temperature is below 19.4 °C (–5°C for R60DSG).
—
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)
Operation cannot be used when the outside
temperature is below 19.4°C (–5°C for R60DSG).
—
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 Engineering
data, etc.) are provided.
Si01-501
Reference
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Service Diagnosis