Profroid QUIETOR CITY GQH G Notice D'instructions page 34

FAULT PROBABLE CAUSE
14. Abnormal Bolts loose.
Noise in
Compressor Fluid in suction line
(*)
Bulb is loose or incorrectly positioned.
Emulsion in oil crankcase
Low pressure switch cuts out.
15. The
High pressure switch cuts out.
Compressor Motor
Fuses burnt out
does not start
Anti-short cycle time delay relay is in operation
Internal security switched out.
Main circuit breaker switch open.
Control system or other automatic device fault.
16. The
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
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
temperatures (re-set times 06:00 to24:00).
Close circuit-breaker.
See paragraphs 12 and 13.
Charge installation with refrigerant
Clean and defrost evaporators
29
increase in motor winding