10 on an Ecoforest heat pump: Failure of any temperature probe (defective probe indicated on screen)

What it means

On the ecoGEO Basic & Compact (R410A inverter GSHP)

The manual says: Failure of any temperature probe (defective probe indicated on screen).

When it shows: Monitored parameter outside normal range: Failure of any temperature probe (defective probe indicated on screen).

On the ecoGEO HP (high power)

The manual says: Failure of a temperature probe (defective probe shown).

When it shows: Monitored parameter outside normal range: Failure of a temperature probe (defective probe shown).

Is it safe?

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

• Identify the probe shown on screen; check probe, connector and wiring.
• Consult Ecoforest technical service documentation (restricted portal).

Who to ask for: heat pump / heating engineer.

What you might notice

• [Alarm] button on front panel lights red; alarm message shown in ALARMS menu
• Compressor may not start while alarm active; repeated critical alarms can block the heat pump (emergency status)

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