14
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Troubleshooting
Installer reference guide
58
RXQ-A_ARXQ-A
R32 split series
4P513661-11P – 2021.11
14 Troubleshooting
14.1 Overview: Troubleshooting
This chapter describes what you have to do in case of problems.
It contains information about solving problems based on symptoms.
Before troubleshooting
Carry out a thorough visual inspection of the unit and look for obvious defects such
as loose connections or defective wiring.
14.2 Precautions when troubleshooting
WARNING
▪
When carrying out an inspection on the switch box of the unit, ALWAYS make
sure that the unit is disconnected from the mains. Turn off the respective circuit
breaker.
▪
When a safety device was activated, stop the unit and find out why the safety
device was activated before resetting it. NEVER shunt safety devices or change
their values to a value other than the factory default setting. If you are unable to
find the cause of the problem, call your dealer.
DANGER: RISK OF ELECTROCUTION
WARNING
Prevent hazards due to inadvertent resetting of the thermal cut-out: power to this
appliance MUST NOT be supplied through an external switching device, such as a
timer, or connected to a circuit that is regularly turned ON and OFF by the utility.
DANGER: RISK OF BURNING/SCALDING
14.3 Solving problems based on symptoms
14.3.1 Symptom: Indoor units fall, vibrate or make noise
Possible causes
Corrective action
The indoor units are NOT installed
securely.
Install the indoor units securely.
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