Hoshizaki AMERICA 73183 - Manual (Page 19)

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8) Cool Down Achieved–CTh cools to 3°F (1.7°C) below setpoint. EvapFM, MH, and
PH continue. Comp and ConFM de-energize. Diagnosis: Confirm Comp and ConFM
de-energize. If not, and Comp and ConFM were energized longer than 2 min., check
CTh status. See "II.D. Thermistor Check." If CTh ohm reading is in range and Comp
and ConFM continue longer than 2 min., check for 115VAC at CM C1 (R) to neutral
(W). If 115VAC is present, replace CM and DM with HS kit. If 115VAC is not present and
Comp and ConFM continue, check for 115VAC at CR #1 (R) to neutral (W). If 115VAC is
present, replace CR.
9) Defrost–"dEF" is displayed during defrost. There is a 5-min. minimum defrost time and
a 1-hr. maximum defrost time.
1a) Temperature/Time-Initiated: DTh cools to 32°F (0°C), 4-hr. cumulative Comp run
timer starts. Once DTh is at or below 32°F (0°C) with 4-hr. cumulative Comp run
timer satisfied (Comp energized more than 4 hrs.), "dEF" appears on DM. MH and
PH continue. DH and DrH energize. Comp, ConFM, and EvapFM de-energize.
1b) Manually-Initiated: To initiate a manual defrost, press and hold the lower button
for 5 seconds. "dEF" appears in the display. MH and PH continue. DH and DrH
energize. Comp, ConFM, and EvapFM de-energize.
2a) Temperature/Time Initiated Defrost-Termination:
(1) DTh warms to 59°F (15°C). "dEF," MH, and PH continue. DH and DrH
de-energize. 3-min. Comp/ConFM delay timer starts, 8-min. EvapFM delay timer
starts, and 13-min. temperature display delay timer starts.
(2) 3-min. Comp/ConFM delay timer terminates, Comp, ConFM, and EvapFM
energize.
(3) 5-min. later, EvapFM delay timer terminates and EvapFM energizes.
(4) 5-min. after EvapFM energizes, 13-min. temperature display delay timer
terminates and cabinet temperature appears on DM.
2b) Manually Initiated Defrost-Termination:
(1) DTh warms to 59°F (15°C). MH and PH continue. DH and DrH de-energize.
3-min. Comp delay timer starts, 3-min. EvapFM delay timer starts, and 13-min.
temperature display delay timer starts.
(2) 3-min. Comp and EvapFM delay timers terminate, Comp, ConFM, and EvapFM
energize.
(3) 10 min. after that, 13-min. temperature display delay timer terminates and cabinet
temperature appears on DM.