Tag: fujitsu
All the articles with the tag "fujitsu".
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Fujitsu Mini Split Not Cooling - Causes & Fix
Dirty air filters blocking airflow are the most common cause. Clean or replace filters, then check for error codes on the indoor LED.
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Fujitsu Mini Split 11:4 Error Code — Indoor Unit Communication Timeout Fix
Fujitsu 11:4 means the outdoor PCB stopped receiving valid communication frames from the indoor unit within the firmware timeout. It's almost always wiring...
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Fujitsu Mini Split 15:1 Error Code — Low Pressure Fix
Fujitsu 15:1 means the suction-side low-pressure switch opened — suction pressure dropped below the trip threshold (around 25-30 PSI on R-410A platforms)...
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Fujitsu Mini Split 14:1 Error Code — High Pressure Fix
Fujitsu 14:1 means the outdoor high-pressure switch opened — head pressure climbed past the trip point (around 580-620 PSI on R-410A platforms) and the...
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Fujitsu Mini Split Error Codes — E and P Code Guide
Fujitsu mini split error codes: all E and P fault codes for Fujitsu Halcyon and Airstage systems with causes and fixes.