Hoshizaki JWE-24000CUA-L-25B, JWE-2400CUA-R-25B service manual

e)Booster Tank Water Level Error 2 (Booster Tank Water Level Float Switch Open) (o2)

•If the booster tank water level float switch is open and the booster tank backup water level float switch has remained closed for 1 minute, the booster tank heaters de-energize, "o2" appears in the display, and the buzzer sounds.

•The error resets if the booster tank backup water level float switch opens or when the "ON/ OFF" button is used to turn the unit off and then back on.

•See the chart below for possible causes and remedies.



Code

o 2

Error

Booster tank water level float switch is open and booster tank backup water level switch has remained closed for 1 minute.

Operation

Unit stops

Item

Booster Tank Water Level Float Switch

Booster Tank Backup

Water Level Float

Switch

Possible Cause

Sticking.

Open circuit.

Defective.

Sticking.

Remedy

Check and clean. See “III.D. Float Switch Check and Cleaning.”

Repair or replace.

Replace.

Check and clean. See “III.D. Float Switch Check and Cleaning.”

Defective.

Replace.

Control Board

Connector not properly connected.

Reconnect.

Defective.

Replace.

Note: See “III.D. Float Switch Check and Cleaning.”

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