Resetting a Fujitsu mini-split system is a straightforward process that can typically be accomplished by performing a hard power reset on the equipment. First, locate the dedicated circuit breaker or local electrical disconnect box that supplies power to the outdoor condenser and indoor air handler, and switch it to the off position. Leave the power completely disconnected for approximately five to ten minutes to allow the internal electronic control boards and capacitors to fully discharge. Afterward, turn the breaker back on, and use the wireless remote to power the system back up, which clears temporary digital communication errors or minor software lockouts.
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