Hoshizaki KM-1301SRH-E Ice Maker User Manual


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an inoperative Comp, or an inoperative HM. If the unit switches out of freeze with F/S
connector removed, but would previously not switch out of freeze with F/S connected
(longfreeze-3beepalarm),F/Smaybesticking.TocheckandcleanF/S,see"IV.D.
FloatSwitchCheckandCleaning."Iftheunitremainsinfreezelongerthan15seconds
after disconnecting black F/S connector, replace CB.
Note: Normal freeze cycle will last 20 to 40 minutes depending on model and
conditions. Cycle times and pressures should follow performance data provided in
thismanual.See"III.C.PerformanceData."
6) Pump-Out Cycle – (10/20 second pump-out) – LEDs 1, 3, and 2 are on. LED 4
is on when S4 dip switch 3 & 4 are set to 3 off and 4 on. CAUTION! Do not adjust
S4 dip switch 3 & 4 to 3 off and 4 on. Adjustment to this position on this model
prevents the pump motor from rotating in the pump-out direction. For details, see
"II.C.2.c)Pump-OutTimer(S4dipswitch3&4)."CompandFMRremainenergized,
HGV energizes. WV energizes if S4 dip switch 3 off and 4 on. LLV and FM de-energize.
PM stops for 2 seconds, then reverses for 10/20 seconds depending on pump-out
timer S4 dip switch 3 & 4 setting. When the pump-out timer terminates, the pump-
out is complete. The pump-out frequency control is factory set for every 10th cycle,
and generally no adjustment is required. However, where water quality is bad and the
icemaker needs a pump-out more often, the pump-out frequency can be adjusted.
The pump-out frequency control (S4 dip switch 5 & 6) can be set to have a pump-out
occur every cycle, or every 2, 5, or 10 cycles.
Timing of the rst pump-out is dependent
on S4 dip switch 5 & 6 settings. See the table below.
S4 Dip Switch Setting
Pump-Out
Frequency
1st Pump-Out
No. 5 No. 6
OFF OFF Every cycle After 2nd freeze cycle
ON OFF Every 2 cycles After 3rd freeze cycle
OFF ON Every 5 cycles After 6th freeze cycle
ON ON Every 10 cycles After 11th freeze cycle
Diagnosis: If PM does not reverse, check to see if CB S4 and S5 dip switch settings
are in the factory default position. If S4 dip switch 3 and 4 are adjusted to 3 off and 4 on,
WV and harvest pump timer relays energize. Once these relays energize, the pump
motorrotatesinthefreezecyclerotation.See"III.B.WiringDiagrams."CheckPMcircuit
and capacitor, check #5 pin (DBu wire) on CB K1 ten-pin connector for voltage, harvest
pump timer X1 and X2 relays (auxiliary code T-0, U-0), X10 and X11 relays (auxiliary
code U-1 and later). If water does not pump out, check and clean the check valve
assembly and tubing.
7) Normal Harvest Cycle –sameastheinitialharvestcycle–Returnto"IV.A.4)Initial
HarvestCycle."
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