Purpose and Applicable Part/Model Numbers
This document describes issues related to firmware mismatches in the H2 Zero unit..
Fan Control Board Firmware Mismatch
If the fan control board and the main control board are both not programmed with the most current firmware, the unit can enter a condition in which the fan unit will stay on continually.
Check the firmware version of the control board, if it is not r05 turn the controller off and this should turn the fan off. If the fan shuts off, then mismatched firmware is the issue. If this is is the issue then the controller board will need to be swapped for a current board.
Please contact Comm/net Systems Support for RMA (Return Merchandise Authorization) instructions.
Comm/net Systems Inc. Support
or submit a support ticket through this portal.