Hoshizaki ROX-20TA-U - Manual (Page 35)

33
U8AA5540012
Lamp
Service
Call
Code
E61
E62
E65
Problem
Flow switching
valve direction
microswitch turns
ON and OFF 5
times in 2 min.
Programmable
controller outputs
to flow switching
valve gear motor
for 20 sec.
After gear motor
stops, location
microswitch turns
ON.
Check
Gear Motor
Location Microswitch
Microswitch
Gear Motor
Possible Cause
Will not stop.
Fails to detect.
Fails to detect.
Overrun.
Remedy
Repair or replace.
Repair or replace.
Repair or replace.
Repair or replace.
* 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.