What FA2 Means
FA2 sits beside FA0 in the same frequency consistency group. The manual attributes it either to a power frequency problem or to a controller malfunction, and names the harness connection as the thing to check before the controller is replaced.
Common Causes of FA2
- An irregular incoming supply frequency
- A harness connection degraded on the supply side of the controller
- A controller whose measuring circuit has failed
🔧 One Safe Check You Can Try
Treat it as you would FA0: establish whether the machine is on a normal household circuit rather than a temporary, generator, or inverter supply, since that alone explains a fair share of frequency problems.
⚠ Why You Shouldn't Go Further Than That
- The supply side of the controller must be dead before any connection there is disturbed, which means the breaker off rather than just the machine switched off.
- FA0 and FA2 come from the same family of checks, so treating them as two unrelated problems leads to two repairs where one was needed.
- A loose supply connection can arc quietly for a long time before anything else shows, and it is not something to re-make without the right terminals.
- Fitting a board to cure what is actually a wiring or supply problem means the new board inherits the problem on day one.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.