Heat pumps · Error codes · Ideal Heating
106Ideal Heating · Logic Air
106 on an Ideal Heating Logic Air: Source Temp too low
Short answer
On an Ideal Heating heat pump, 106 means: Source Temp too low. 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: Source Temp too low.
Part involved: air source / evaporator.
Likely causes:
- Blockage in pipework between outdoor and indoor units; evaporator inlet blocked; fan outlet blocked.
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 or fault message shown on the controller/Halo and when it appeared; check the heat pump's isolator and consumer-unit breaker are on. Check the outdoor unit is not blocked by snow, ice, leaves or stored items and that air can flow freely around it.
What the engineer will check
- Check for pipework blockage; clear evaporator inlet and fan outlet.
Who to ask for: Heat pump / heating controls engineer.
Sources
- Logic Air Monobloc Heat Pump System - Installation & Maintenance (UIN 241428 A03) ↗ · UIN 241428 A03 · page 80 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026