HVAC Sales Master

Fault Code Lookup

HVAC Sales Master
L0-L9 / LO-L9
IPM module protection
This code typically points to
  • Failed control board
  • Failed compressor
  • Abnormal pressure
Next checks to confirm
  1. Verify compressor condition
  2. Verify pressure conditions
  3. Inspect inverter/IPM module
Escalation
Important inverter-specific family — do NOT treat like a normal low-voltage code.
Reset behavior
Manual intervention typically required.
Urgent
Fix now
Need deeper detail?
Retrieve the subcode for this platform:
  1. Connect the IDS system in EasyAir App
  2. Use the contractor view to monitor heat pump health
  3. Review real-time alerts, fault codes, and checkpoint values
  4. For on-site work, use Bluetooth-enabled access to system data and historical fault codes
  5. Calculate superheat/subcool within the app for diagnostic verification
  6. Bluetooth access is retained on-site even without continued remote subscription
Tool required: Bosch EasyAir App
Source
Bosch IDS 2.0 service documentation
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