HVAC Sales Master

Fault Code Lookup

HVAC Sales Master
P2 / H5
Low-pressure protection
This code typically points to
  • Poor heat exchange
  • Fan failure
  • Service valves not open
  • Blocked TXV/EEV/filter-drier
  • Undercharge
Next checks to confirm
  1. Verify indoor airflow
  2. Verify service valves
  3. Check for restrictions
  4. Verify charge
Escalation
H5 specifically requires HARD RESTART — does NOT self-clear when condition goes away (unlike most other abnormal conditions).
Reset behavior
H5 requires hard restart; P2 self-clears.
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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