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CSW45
Technical Service Diagnosis
Symptom
Unit Off
Unit runs, makes no ice
* If the system has been running in a vacuum AND the leak is found to be on the LOW side, repair the leak
AND replace the compressor.
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Possible Cause
No power to unit
Unit switched off
Ice level control keeping unit off
Transformer Open
Control board failed
No water to unit
Pump does not run
Unit overheating
Compressor does not run
Low on refrigerant
Hot gas valve leaking thru
July 1999
p: 707.737.1100
Page 18
Product Code: AHT9KCSW45A1A
Probable Correction
Plug unit it
Reset circuit breaker or replace
fuse
Check control switch
o
Room colder than 55
heat
Ice on sensor tube - remove it
Check/replace transformer
Switch unit to Clean, note if all
valves and motors are switched
on for 5 seconds each one after
another. If not, replace the board.
Check/restore water supply
Check water valve
Check connection from control
box to pump
Check/replace pump
Check for dirty condenser
Check fan blade and motor
Air flow blocked, check for air
obstruction
Check compressor relay
Check compressor windings
Install service ports, weigh out
charge, If low, locate and repair
leak, replace drier evacuate to
300 microns and weigh in
nameplate charge*
Check/replace hot gas valve
Page 9 of 15
F., increase
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