Error code
58 Intake grille not closed
How it shows on the unit OPERATION lamp (green) 5 blinks, TIMER lamp (orange) 8 blinks, ECONOMY lamp (green) continuous flashing
Applies to 6 models
ASYG09LTCB, ASYG12LTCB, ASYG14LTCB, AOYG09LTCN, AOYG12LTCN, AOYG14LTCN
What this means
The service instruction lists this pattern as an intake grille fault; the owner manual's cleaning section explains the unit will not start and blinks this way when the intake grille is not fully closed.
What you can check yourself
- Close the intake grille fully, as described in the owner manual's cleaning instructions.
- If the pattern returns with the grille fully closed, contact an authorized technician.
Still not resolved? Contact a qualified installer or servicer.
See the Fujitsu manual (hosted by an authorized distributor)Hosted by an authorized distributor rather than by the manufacturer. We link to manuals, we never host them.
Using Claude Code or Meta Muse? Connect HeatPump AI and ask it about 58.