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8-4
TROUBLESHOOTING
SYMPTOM: Freeze-up due to extended freeze period.
POSSIBLE CAUSE
Freezer pressure switch setting too low.
Water tank drain valve (39) open or leaking, or
make-up water float valve (12) stuck open.
Thawing gas solenoid valve (18) leaking
through during the freeze cycle.
Float switch stuck or failed in the closed
position.
"A" valve (20) stuck open
2/14/07
POSSIBLE REMEDY
Adjust freezer pressure switch, or replace if
defective. See FIGURE 9-3, Section 9.
Close valve, repair, or replace as necessary.
Check the manual opening stem to make sure
it is in the automatic position (stem screwed
out). Check for leakage through the valve by
sound and temperature difference. Close the
stop valve (90) at the receiver to confirm
suspicion of leakage. Repair or replace the
valve as needed.
Check to make sure the float switch is opening
and closing.
Check to make sure the "A" Valve is not in
the manual open position. Disassemble valve
and inspect for debris that could hold the
valve open.
03TA Service Manual
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