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Hoshizaki JWE-620UA-6B User Manual

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h) ROM/RAM Error (H5)

• If a ROM/RAM error is detected, the unit shuts down, "H5" appears in the display, and the

buzzer sounds.

• After replacing the failed component, the alarm resets.
• See the chart below for possible causes and remedies.

i) EEPROM Error (H6)

• If an EEPROM error is detected, the unit shuts down, "H6" appears in the display, and the

buzzer sounds.

• After replacing the failed component, the alarm resets.
• See the chart below for possible causes and remedies.

Note: See “IV.N. Removal and Replacement of Control Board or Operation Board.”

Control Board

Defective.

Replace.

ROM/RAM on control board fails.

H 5

Code Error

Item Possible

Cause

Remedy

Unit stops.

Operation

EEPROM on control board fails.

H 6

Code Error

Item Possible

Cause

Remedy

Unit stops.

Operation

Control Board

Defective.

Replace.