Same badge, different builder: confirm the platform before using codes or service mode
Some badges were built by different companies depending on product type and year. Before trusting a code meaning or key sequence, confirm the platform with one hard piece of evidence: part-number format, serial style, a recall notice or the plate's builder line.
Before you start
- Do not force test modes on an unconfirmed platform; some sequences run pumps, heaters or motors.
Diagnostic steps
Unlock all 4 steps with expected values
Full library + AI assistant + the OnCall Tech app for iPhone & Android. $34.90, one time.
Get lifetime accessOnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.
