Heat pumps · Error codes · Alpha Heating Innovation
E196Alpha Heating Innovation · Alpha Hydro 5/8/12/16 R32 monobloc (with Pre-Plumb 200)
E196 on an Alpha Heating Innovation Alpha Hydro 5/8/12/16 R32 monobloc: Flow high temperature block: Excessively high temperature detected on the heat pump flow circuit
Short answer
On an Alpha Heating Innovation heat pump, E196 means: Flow high temperature block: Excessively high temperature detected on the heat pump flow circuit. 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: Flow high temperature block: Excessively high temperature detected on the heat pump flow circuit.
Part involved: flow circuit.
Likely causes:
- Excessively high temperature detected on the heat pump flow circuit.
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 the hydraulic circuit.
Who to ask for: heat pump engineer.
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