Machine Does Not Enter Harvest - Ice-O-Matic ICE0250 Series Service And Installation Manual

ICE Series

Machine Does Not Enter Harvest

Will suction
pressure drop
below cut-in of
Timer Initiate?
YES
Does the
manual Purge
Switch
energize the
Purge Valve?
NO
High
Temperature
Safety Control
may be open,
see page F8
NO
Is the freeze
pattern on the
Evaporator
even?
YES
Check for signs of a
weak Compressor,
see page E1
YES
NO
Check Purge Valve
to make sure it is not
leaking, if it is
replace valve or
remove obstruction
OK
Make sure system is
not overcharged
Check Timer Initiate
Control for correct
cut-in pressure
OK
Check Timer
Number 1 for proper
setting and
operation
OK
Check Timer
Number 2
OK
Relay Number 1
or Relay Base
may be
defective
Page C14
Troubleshooting Trees
OK
Hot Gas Valve
could be leaking
OK
TXV(s) may be
stuck open, see
page E3 and E4
NOT OK
NOT OK
Timer Initiate
Control out of
adjustment or
may be
defective
Timer may be
defective