Hoshizaki JWE-2400CUA-R-25B, JWE-24000CUA-L-25B service manual b Booster Tank Auto Fill Error A2

b) Booster Tank Auto Fill Error (A2)

•In the auto fill cycle, if the booster tank water level float switch does not close within 10 minutes (or 20 minutes in "READY" mode) after the cycle starts, the unit shuts down, "A2" appears in the display, and the buzzer sounds.

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

•See the chart below for possible causes and remedies.



Code

A 2

Error

Booster tank water level float switch does not close within 10 minutes (or 20 minutes in “READY” mode) after the auto fill cycle starts.

Operation

Unit stops.

Item

Booster Tank

Strainer

Water Valve

Booster Tank Water Level Float Switch

Possible Cause

Not ready for operation.

Water supply pressure too low.

Filter clogged.

Open circuit.

Filter clogged.

Defective.

Connector not properly connected.

Remedy

Get it ready.

Readjust.

Clean.

Repair or replace.

Clean.

Replace.

Reconnect.

Open circuit.

Sticking.

Repair or replace.

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

Control Board

Connector not properly connected.

Reconnect.

Defective.

Replace.

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