1. Not enough air or liquid flow
through condenser.
2. Low-level (harvest) probe
shorted or touching side of
glass tube.
3. Inoperative water pump.
4. Refrigeration problem.
5. Bad Contactor
(Compressor would be off!)
6. Inlet Water Valve stuck
open. Water Tank will be
overflowing.
7. Controller not shutting off
Water Valve.
8. Hot Gas Valve (HGV) stuck
partially open, or with a
liquid-cooled compressor,
HGV stuck fully open, but
Evaporator never gets hot
enough (>120F) to give an
Error Code 10.
1. Reset high-pressure
safety, if tripped. Clean
the condenser, on air-
cooled units. Check
water/coolant supply, on
liquid-cooled units.
2. Check/repair shorted
wiring to this probe, or
gently move probe away
from glass surface. Make
sure probe is not pushed
up/down out of vertical
adjustment when moving
it away from glass.
3. Unplug the pump and
confirm the impeller is not
jammed with foreign
material. Put machine in
Wash Mode & check
voltage at pump-cable
connector. On the
Controller Board’s AC
output bus, check wires
P5-2 and P5-6, during
Wash Mode, for line
voltage. If rated line
voltage is present, and
the pump’s impeller is not
obstructed, replace faulty
Water Pump.
4. Check for low refrigerant
charge.
5. Replace Contactor.
6. Replace Water Valve.
7. Replace Controller.
8. Replace Hot Gas Valve.
Freeze time exceeds 60 min.
Freeze time exceeds 45 min.
three times consecutively.
1. Slushing, in Pump, water
lines or Water Tank, due to
Expansion Valve mis-
adjustment or not being
wrapped in insulating foam,
or failure.
2. Low-level Probe circuit is
open, or the Water-level
Probe Assembly is bad.
3. Water is being lost
somewhere (leaking),
causing premature harvest
to occur.
4. During harvest, Evaporator
Probe out of adjustment
(too Warm).
5. High-level Probe possibly
short circuiting during fill,
causing short fill and hollow
cubes.
1. Ensure Expansion Valve
(TXV) is covered with
insulating foam, Adjust
TXV as needed. As a
starting point, gently turn
the TXV in CW direction
until it stops, then turn it
CCW 5-1/2 turns. Adjust
in ¼ turn increments as
needed.
2. Repair wiring to Low-level
Probe or replace Probe
assembly.
3. Inspect hoses, water
tank, water pumps, water
plate and water level
probe assembly to locate
leak, repair or replace
bad part as needed.
4. Adjust colder (CW).
5. Locate & repair short
circuit.
Freeze time less than 5 min.,
for 3 consecutive times.
(Water level in the glass
Probe Tube is prematurely
falling below the low-level
probe, during the first 5
minutes of the freeze cycle,
or, the Low-level probe
circuit is open.)