Heat pumps · Error codes · Ecoforest
8Ecoforest
8 on an Ecoforest heat pump: Low brine inlet temperature
Short answer
On an Ecoforest heat pump, 8 means: Low brine inlet temperature. The manual does not say whether the heat pump stops. An engineer is needed to fix the cause.
Reviewed 23 September 2026 · 2 sources
What it means
The manual says: Low brine inlet temperature.
When it shows: Monitored parameter outside normal range: Low brine inlet temperature.
Is it safe?
| Does the heat pump stop? | Not stated |
|---|---|
| Engineer needed? | Yes |
The manual does not say whether the heat pump stops.
Resetting itself: unknown.
Manual reset: User ALARM menu: Alarm reset -> Yes (2013 manual p60).
What you can check
- Read and note the alarm number/message shown on the heat pump front panel (Alarm button lights red).
- Check the heat pump supply breaker at the consumer unit is on.
- Reset active alarms via the user ALARM menu (Alarm reset -> Yes) as the user manual allows; if the alarm returns, call the installer/service centre.
What the engineer will check
- Check brine inlet temperature/ground loop performance and flow.
- Consult Ecoforest technical service documentation (restricted portal).
Who to ask for: heat pump / heating engineer.
What you might notice
Sources
- ecoGEO B1/B2/B3 & C1/C2/C3 3-12 / 5-22 kW Installation and User Manual V03.B03_EN (23/09/2015) ↗ · V03.B03_EN · page 79 · Reviewed 23 September 2026
- ecoGEO HP Installation and Operating Manual Version 1.00 (08/05/2014) ↗ · 1.00 · page 54 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026