Carrier 26H - Manual (Page 57)

Carrier
S E R V I C E 26H
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OBSERVATION POSSIBLE CAUSE REMEDY AND REFERENCE SECTIONS
12. Continuous running and Faulty main control, or Replace if necessary 28
freezing well capillary scaled
Check main control capillary
position in well 28
Replace if ice does not actuate
control from freezing cycle to
defrost cycle when held against
main control capillary (cut-out)
side
28
Overflow water not reach- Scale and foreign particles may plug 15 & 28
ing overflow well and main overflow trough tube. Check posi-
control bulb tion of control bulb. Also check
leveling of machine
13. Unit fails to return to Main control "cut-in " bulb Replace main control 28
freeze cycle has lost its charge
Low ambient temperature Unit will not operate at ambient Installation
temperatures below 50° 2
14. Unit continues to run Bin control contacts fused Replace control 30
with full bunker.
Cutout setting too low Adjust and check 30
Ice not reaching bin
control bulb
15. Water overflowing from Loose electrical connections
machine section
Main control, safety overflow Check wiring and possibility of 28-29 & 30
switch or bin control failed to
stop freezing cycle
faulty controls
Leak in water pump circuit Check water hoses and header 11 & 12
UNSATISFACTORY CUBES
16. Thin wall cubes Manually shutting unit off Normal as a result of such a 18
"shells ". during a freezing cycle shut-down. Instruct owner to
wait until end of defrost cycle
before shutting off unit
Short defrost cycle (cubes Check main control setting; may 28
remaining in freezing require raising cut in point
columns)
Check refrigerant charge 4
Check safety switch 27
57 26H-57PD