Hoshizaki MODULAR CUBELET SERENITY SERIES FS-1022MLH-C - Float Switch Checks and Cleaning

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E. Float Switch Check and Cleaning
1. Float Switch Check
1)Removethefrontpanel,thenmovethepowerswitchtothe"OFF"position.
2)Movethecontrolswitchtothe"DRAIN"position.
3)Movethepowerswitchtothe"ON"position.
4)Allowthewatertodrainfromtheevaporator,thenmovethepowerswitchtothe"OFF"
positionandthecontrolswitchtothe"ICE"position.
5) Unplug the unit from the electrical outlet.
6) Remove the control box cover.
7) Remove CB K8 connector and check F/S continuity. Both the UF/S and LF/S should
be open. Check continuity between CB K8 connector pin #5 black (BK) (common) wire
and K8 connector pin #6 red (R) (UF/S) wire. Next, check continuity between CB K8
connector pin #5 black (BK) (common) wire and K8 connector pin #7 dark blue (DBU)
(LF/S) wire. If both are open, continue to step 5. If either are closed, follow the steps in
"IV.E.2.FloatSwitchCleaning."AftercleaningF/S,checkUF/SandLF/Sagain.Replace
if necessary.
8) Replace CB K8 connector in its correct position.
9)Plugtheunitintotheelectricaloutlet,thenmovethepowerswitchtothe"ON"position
and let the water reservoir ll.
10)OncethereservoirisfullandGMstarts,movethepowerswitchtothe"OFF"position.
11) Unplug the unit from the electrical outlet.
12) Remove CB K8 connector and check F/S continuity. Both the UF/S and LF/S should be
closed. Check continuity between CB K8 connector pin #5 black (BK) (common) wire
and K8 connector pin #6 red (R) (UF/S) wire. Next, check continuity between CB K8
connector pin #5 black (BK) (common) wire and K8 connector pin #7 dark blue (DBU)
(LF/S)wire.Ifeitherareopen,followthestepsin"IV.E.2.FloatSwitchCleaning."After
cleaning F/S, check UF/S and LF/S again. Replace if necessary.
13) Replace CB K8 connector in its correct position. Replace the control box cover in its
correct position.
14)Plugtheunitintotheelectricaloutlet,thenmovethepowerswitchtothe"ON"position
to start the automatic icemaking process.
15) Replace the front panel in its correct position.
2. Float Switch Cleaning
Depending on local water conditions, scale may build up on F/S. Scale on F/S can cause
inconsistant operation of UF/S and LF/S. In this case, both UF/S and LF/S should be
cleaned and checked.
1)Removethefrontpanel,thenmovethepowerswitchtothe"OFF"position.
2) Unplug the unit from the electrical outlet.
2) Remove F/S assembly from the reservoir cover. See Fig. 5.