Lamp

Code

Problem

Check

Possible Cause

Remedy

 

 

 

 

 

 

Service

E42

Metering pump

Filter

Dirty.

Clean.

Call

 

stroke speed

 

 

 

 

Salt Water Hose

 

Unclog.

 

 

exceeds 360spm

Clogged.

 

 

for 60 sec.

 

 

 

 

 

 

Air inside.

Remove air.

 

 

 

 

 

 

 

 

 

 

 

 

 

Water Supply

Too much.

Keep within specified

 

 

 

 

 

range.

 

 

 

 

 

 

 

E43

Metering pump

Cell Salt

Too high.

Repeat dispensing to

 

 

stroke speed

Concentration

 

supply water and

 

 

does not exceed

 

 

lower concentration.

 

 

10spm for 60

 

 

 

 

 

Set Voltage

Too high.

Reduce.

 

 

sec.

 

 

 

 

 

 

 

 

 

Set Amperage

Too low.

Raise.

 

 

 

 

 

 

 

 

 

Salt Water Tank

Salt water too thick.

Thin.

 

 

 

 

 

 

 

 

 

Metering Pump Head

Not positioned at

Turn into “E” position.

 

 

 

Dial

“E”.

 

 

 

 

 

 

 

Service

E51

Stroke speed

Salt Water Hose

Air inside.

Remove air.

Call

 

exceeds last

 

 

 

 

 

 

Unclog.

 

 

stroke speed +

 

Clogged.

 

 

10spm for 20

 

 

 

 

 

Filter

 

Clean.

 

 

sec.

Dirty.

 

 

 

 

 

 

 

 

 

Salt Water Tank

Salt water too thin.

Thicken.

 

 

 

 

 

 

 

 

 

Switching Power

Defective.

Repair or replace.

 

 

 

Supply

 

 

 

 

 

DC power supply

Repair.

 

 

 

 

 

 

 

 

line opened.

 

 

 

 

 

 

 

 

 

 

Control Panel

Connector in bad

Improve contact.

 

 

 

Backside Board

contact.

 

 

 

 

 

 

 

 

 

 

 

Parts on board

Repair or replace.

 

 

 

 

defective.

 

 

 

 

 

 

 

 

 

 

Relay

Bad contact.

Repair or replace.

 

 

 

 

 

 

 

 

 

Magnetic Contactor

Bad contact.

Repair or replace.

 

 

 

 

 

 

 

E52

Abnormal input

Current Sensor

Defective.

Repair or replace.

 

 

from current

 

 

 

 

 

 

 

Improve contact or

 

 

sensor

 

Connector in bad

 

 

 

 

contact or open

repair.

 

 

 

 

circuit.

 

 

 

 

 

 

 

 

 

 

Switching Power

Defective.

Repair or replace.

 

 

 

Supply

 

 

 

 

 

Connector in bad

Improve contact.

 

 

 

 

 

 

 

 

contact.

 

 

 

 

 

 

 

32

U8AA5540012

Page 34
Image 34
Hoshizaki ROX-20TA-U service manual U8AA5540012