Heat pumps · Error codes · Alpha Heating Innovation
E195Alpha Heating Innovation · Alpha Hydro 5/8/12/16 R32 monobloc (with Pre-Plumb 200)
E195 on an Alpha Heating Innovation Alpha Hydro 5/8/12/16 R32 monobloc: Liquid phase probe low temperature anomaly: Too low temperature detected in the liquid phase
Short answer
On an Alpha Heating Innovation heat pump, E195 means: Liquid phase probe low temperature anomaly: Too low temperature detected in the liquid phase. 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: Liquid phase probe low temperature anomaly: Too low temperature detected in the liquid phase.
Part involved: liquid pipe probe.
Likely causes:
- Too low temperature detected in the liquid phase.
Is it safe?
| Does the heat pump stop? | Not stated |
|---|---|
| Engineer needed? | Yes |
The manual does not say whether the heat pump stops.
What you can check
- Note the code and any text shown on the display/controller.
- Check the heat pump isolator and consumer-unit breaker are on.
What the engineer will check
- Check that the cooling (refrigerant) circuit is working properly.
Who to ask for: heat pump engineer.
Certification: F-gas certified engineer (refrigerant circuit).
Sources
- Alpha Pre-Plumb 200 - Pre-plumbed cylinder with Hydro heat pump - Installation and Servicing Instructions (06-23) ↗ · Pre-Plumb 200 instructions 06-23 · page 37 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026