39
SYSAER R32
19. TROUBLE SHOOTING
Problem
Probable cause
Solution
Unit operates
continuously
but without
generating
cooling
Insufficient refrigerant fluid charge.
Top up the refrigerant fluid charge.
Clogged dehumidification filter.
Replace the dehumidification filter.
Reduced output from one or both circuits
Check the compressor valves and change them if necessary.
Frozen intake
line
The overheating setting on the thermostatic
pressure relief valve is too low.
Increase the setting.
Check the refrigerant fluid charge
Excessive noise
Vibrating pipe work
Attach the pipe work correctly.
Check the pipe work attachments.
Whistling noise from the thermostatic pressure
relief valve
Top up the refrigerant fluid charge.
Check and replace the dehumidification filter if necessary.
Noisy compressor
Check the condition of the valves.
Seized bearings. Replace the compressor
Check the tightness of the compressor attachment nuts.
Low oil level in
the compressor
Presence of one or several oil or gas leaks in the
circuit
Locate and repair the leaks
Mechanical compressor damage.
Contact an approved Service Centre.
Sump oil heater resistance fault.
Check the electrical circuit and the condition of the resistance.
Replace defective parts if necessary.
One or both
compressors do
not operate.
Electrical circuit cut.
Check the electrical circuit and seek out any grounding and/or
short- -circuits. Check the fuses.
High pressure pressostat activated.
Reset the pressostat from the control panel and restart the
unit. Identify and eliminate the causes of this activation.
Circuit breaker open
Check the control circuit and seek out any grounding and/or
short-circuits. Reset the circuit breaker.
Connection problem
Check the tightness of all the electrical connection terminals.
Electrical circuits thermal protection cuts in.
Check the operation of the control and safety devices. Identify
and eliminate the cause of the activation.
Incorrect wiring.
Check the wiring of the control and safety devices.
Mains voltage too low.
Check the power line. Eliminate any possible problems
associated with the system. If the problem is due to the
network, inform the Electricity Company.
Compressor motor short–circuited.
Check the continuity of the motor winding.
Compressor seized
Replace the compressor.
Circuit stoppage
further to the
low pressure
thermostat
being activated.
Presence of a leak.
Identify and repair the leak.
Insufficient refrigerant fluid charge.
Top up the refrigerant fluid charge.
Pressostat operating fault.
Replace the pressostat.
Summary of Contents for AC-RSR105R32HEC
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