m) Booster Tank Water Level Safety Error (b2)

If the booster tank water level safety float switch opens after the booster tank water level float switch closes, the unit shuts down, "b2" appears in the display, and the buzzer sounds.

To reset, use the "ON/OFF" button to turn the unit off and then back on.

Code

b 2

Error

Booster tank water level safety float switch opens after booster tank water level float switch closes.

Item

 

Possible Cause

 

 

 

 

 

 

Water Heater

 

 

Water supply pressure

 

 

 

too low.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flow rate too low.

 

 

 

 

 

 

Operation

Unit stops

Remedy

Readjust.

Readjust.

Strainer

Water Valve

Booster Tank Water

Level Safety Float

Switch

Control Board

Filter clogged.

Open circuit.

Filter clogged.

Defective.

Open circuit or connector not properly connected.

Sticking.

Defective.

Connector not properly connected.

Clean.

Repair or replace.

Clean.

Replace.

Repair or replace.

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

Replace.

Reconnect.

Defective.

Replace.

Rinse Spray Arm

Pressure Reducing

Valve

Rinse Water Level

Disconnected or water leaks from joint.

Clogged.

Defective.

Insufficient water supply.

Reconnect.

Clean.

Replace.

Readjust.

40

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Hoshizaki JWE-2400CUA-R-25B, JWE-24000CUA-L-25B service manual Booster Tank Water Level Safety Error b2

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