CSZ EZT-570i, Technical Manual

Page: 12 / 95

EZT-570i Technical Manual
12
4.1.5 Conditioning System Failures and Corrective Actions
SYMPTOM PROBABLE CAUSES CORRECTIVE ACTIONS
Chamber air circulator(s) not turning
on.
Chamber event not turned on.
Conditioning system disabled (altitude
chambers).
Blown fuse.
Chamber in defrost (if equipped).
Basket not in correct position
(DTS/VTS).
Chamber door open (if door switch
enabled in configurator).
Turn on chamber event.
Altitude above controllable limit for
temperature. Decrease altitude or
turn off altitude system.
Replace Fuse.
Check defrost status. Allow defrost to
complete or terminate defrost.
Check basket position and adjust if
necessary. Check basket position
sensors, adjust/replace.
Close chamber door.
Chamber not heating.
Chamber event not on.
Conditioning system disabled (altitude
chambers).
Blown heater fuse.
Sheath heater limit tripped.
9300 controller output off.
Chamber in defrost (if equipped).
Turn on chamber event.
Altitude above controllable limit for
temperature. Decrease altitude or
turn off altitude system.
Replace fuse.
Check heater limit. Maximum
temperature reached.
Verify proper 9300 controller
configuration. Check set point.
Replace 9300 controller.
Check defrost status. Allow defrost to
complete or terminate defrost.
System 1 compressor not turning on.
Chamber event not on.
Conditioning system disabled (altitude
chambers).
Blown fuse.
Compressor internal thermal overload
tripped.
Chamber in defrost (if equipped).
Refrigeration system not enabled or
compressor percent on set point not
exceeded for delay time.
Turn on chamber event.
Altitude above controllable limit for
temperature. Decrease altitude or
turn off altitude system.
Replace fuse.
Allow compressor to cool. Check
refrigeration system/injection valve
operation.
Check defrost status. Allow defrost to
complete. Compressor will cycle as
needed.
Check configurator settings. Refrig
system type should match installed
system type.
System 2 compressor not turning on.
Blown fuse.
Replace fuse.