Hoshizaki SRC-14H Service Manual page 19

10) Refill Cycle – "GM", "COMP", and "WTRIN" LEDs are on.
LFS opens. WV energizes and FT starts. GM, CCR/GMPR, EH, PDS, MC, Comp, and
FMR continue. LFS closes. Nothing happens at this time. Reservoir continues to fill
until UFS closes. When UFS closes, WV de-energizes, FT terminates, and FZT starts.
If UFS remains open longer than 90 sec. after LFS opens, FT exceeded and CB sounds
a 1-beep alarm. WV remains energized until UFS closes. Alarm resets automatically
when UFS closes.
Diagnosis – Confirm that the water level has dropped and the UFS and LFS are open.
See "II.E.1. Float Switch Check." Check that "WTRIN" LED is on. If LFS is open and
"WTRIN" LED is off, replace CB. If "WTRIN" LED is on, check that the reservoir fills.
If not, check water supply line shut-off valve, water filters, and WV screen. If "WTRIN"
LED is on and WV is off, check CB K2 #8 (W/BR) to a neutral (LBU) for 24VAC. If
24VAC is not present, check CB K2 #9 (W/R) to a neutral (LBU) for 24VAC. If 24VAC
is present on CB K2 #9 (W/R) and not on CB K2 #8 (W/BR), replace CB. If 24VAC is
present on CB K2 #8 (W/BR), check continuity through WV solenoid. If open, replace
WV. If WV is energized and refill exceeds FT with no water in the reservoir, check for DV
leaking. If reservoir is full and overflowing check for open UFS. See "II.E. Float Switch
Check and Cleaning." If UFS is closed, check that WV de energizes. If not, check CB
K2 #8 (W/BR) to a neutral (LBU) for 24VAC. If 24VAC is present, replace CB. If WV
de-energizes and water continues to fill the reservoir, replace WV.
FT: 90-Sec. Low Water Safety Timer – When LFS opens, 90-sec. low water safety
timer starts. If UFS does not close within 90 sec. after LFS opens (FT exceeded),
CB sounds a 1-beep alarm and a 90-sec. shutdown cycle starts.
See "III.A.2. LED Lights and Audible Alarm Safeties." PDS de-energizes. Refrigeration
circuit low-side pressure drops to 9 PSIG, opening CLPS. CLPS opens, de-energizing
MC, which de-energizes Comp and FMR. GM, CCR/GMPR, and EH continue. 90-sec.
purge timer terminates, GM, EH, and CCR/GMPR de-energize. WV and 1-beep alarm
continue until UFS closes.
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