#9 on an Ochsner OTS touch controller alarm platform: System pressure, heat sink system - troubleshooting: Check system pressure in heat sink system, replace sensor, check wiring, check hydraulics
Short answer
On an Ochsner heat pump, #9 means: System pressure, heat sink system - troubleshooting: Check system pressure in heat sink system, replace sensor, check wiring, check hydraulics. The manual does not say whether the heat pump stops. An engineer is needed to fix the cause.
Reviewed 23 September 2026 · 1 source
What it means
The manual says: System pressure, heat sink system - troubleshooting: Check system pressure in heat sink system, replace sensor, check wiring, check hydraulics.
Part involved: System pressure, heat sink system.
Is it safe?
| Does the heat pump stop? | Not stated |
|---|---|
| Engineer needed? | Yes |
The manual does not say whether the heat pump stops.
Manual reset: Faults are acknowledged via the controller Alarms menu (manual section 22.2).
What you can check
- Note the alarm number and text shown under Menu > Alarms and contact your system installer or OCHSNER customer service.
- Check the heating system pressure gauge reading and tell the installer the value.
What the engineer will check
- Check system pressure in heat sink system, replace sensor, check wiring, check hydraulics.
Who to ask for: heating installer (OCHSNER system partner).
What you might notice
Sources
- OCHSNER AIR HAWK 208 Operating manual (valid from app V03.03.xxx), incl. OTS fault messages ↗ · EN13 (BA_982010) · page 46 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026