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FAULT
PROBABLE CAUSE
14. Abnormal
Bolts loose.
Noise in
Broken connecting-rod
Compressor
Fluid in suction line
(*)
Bulb is loose or incorrectly positioned.
Emulsion in oil crankcase
15. The
Low pressure switch cuts out.
Compressor Motor
High pressure switch cuts out.
does not start
Fuses burnt out
Anti-short cycle time delay relay is in operation
Internal security switched out.
Main circuit breaker switch open.
16. The
Control system or other automatic device fault.
Compressor works
Installation insufficiently charged
continuously
Evaporators blocked or ice present
(*)If there is an abnormal noise in the compressor, switch off the compressor. Find
the cause of the noise and remedy before re-starting
ACTION REQUIRED
Tighten bolts
Do not re-start compressor
Check and re-set thermostatic expansion valves.
Check that the liquid solenoid valves do not remain
open when machine stops.
Check bulb position
Incorrect lubrication. See paragraphs 13 and 10.
See paragraph 3.
See paragraph 6.
Check the cause and change fuses
Wait
Check
cause
of
increase
temperatures
Close circuit-breaker.
See paragraphs 12 and 13.
Charge installation with refrigerant
Clean and defrost evaporators
in
motor
winding
26/34
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