Hoshizaki ROX-20TA-U service manual U8AA5540012

Page 35

Lamp

Code

Problem

Check

Possible Cause

Remedy

 

 

 

 

 

 

Service

E61

Flow switching

Gear Motor

Will not stop.

Repair or replace.

Call

 

valve direction

 

 

 

 

Location Microswitch

Fails to detect.

Repair or replace.

 

 

microswitch turns

 

 

ON and OFF 5

 

 

 

 

 

times in 2 min.

 

 

 

 

 

 

 

 

 

 

E62

Programmable

Microswitch

Fails to detect.

Repair or replace.

 

 

controller outputs

 

 

 

 

 

to flow switching

 

 

 

 

 

valve gear motor

 

 

 

 

 

for 20 sec.

 

 

 

 

 

 

 

 

 

 

E65

After gear motor

Gear Motor

Overrun.

Repair or replace.

 

 

stops, location

 

 

 

 

 

microswitch turns

 

 

 

 

 

ON.

 

 

 

 

 

 

 

 

 

*When restarting the electrolyzer after a shutdown for some error, check the amperage and voltage on the electrolytic cell with an ammeter and voltmeter (not those provided on the electrolyzer). If the voltage reading is normal but the amperage is still low, the salt water inlet can be clogged or the salt water may be too thin. If both amperage and voltage are too low, check for abnormal DC power supply or a bad contact of the relay or magnetic contactor.

*The electrolyzer may also shut down for some error when the flow rate varies for acid water and alkaline water because of different piping resistance (ex. connecting hose crushed or one of the water outlets under water). Even if the electrolyzer is in operation, varying flow rate may cause low pH and chlorine concentration. Keep a constant flow rate by balancing the piping resistance.

*The amperage varies with the salt water concentration and metering pump stroke speed. When restarting the electrolyzer after a shutdown for some error, check the change in amperage and the metering pump operation.

U8AA5540012

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Contents Model ROX-20TA-U Contents General Information Safety Instructions U8AA5540012 Product Information DIMENSIONS/CONNECTIONS Features of Strong Acid Water Principle of Strong Acid Water Generation II. Construction General U8AA5540012 Control Panel Display Panel Control BOX Outlet Valves Option Remote Controller OptionWater Tank Float Switches Option U8AA5540012 A1 Cell Lifecycle Adjustment ProcedureLighting A3 Voltage A2 AmperageA5 Amperage Accumulation Time A4 Cell Reverse TimeA6 Storage Mode/Hand-washing Mode A8 Initial Flush Cycle Time A7 Cell Running/Reverse Time ResetA9 Automatic Dispensing Control Checking Procedure Functions and Adjustment of Check ItemsLighting Flashing C2 Input Conditions C1 Output ConditionsSet Check Operation Flow ChartIV. Technical Information Water Circuit Wiring Diagram Performance Data PH and Amperage Service Information MAINTENANCE/INSPECTION Cell Replace Lamp No Acid Water pH, Alkaline Water pH NoAvailable Chlorine Concentration Acid No Thiosulfuric Acid TitrationCartridge Filter No Service DiagnosisU8AA5540012 U8AA5540012 MINAMIYAKATA, SAKAE, TOYOAKE, Aichi 470-1194 Japan