Fujitsu · Waterstage SuperHP Heat Pumps
The user interface displays '83: BSB wire short-circuit', indicating a short circuit in the BSB communication wiring, which can disrupt system communication. This error typically triggers an automatic reset.
Click steps to track your progress.
Turn off the main power supply to the heat pump for 30 seconds, then turn it back on.
Visually inspect the BSB communication wiring for any cuts, pinches, or exposed conductors.
Allow time for the automatic reset to occur (default 6 hours) or use the manual reset function (Line 6711) if available.
Contact a qualified service technician to inspect and repair the BSB wiring.