Heat pumps · Error codes · Midea
EbMidea
Eb on a Midea heat pump: Tsolar solar panel temperature sensor error
Short answer
On a Midea heat pump, Eb means: Tsolar solar panel temperature sensor error. The manual does not say whether the heat pump stops. An engineer is needed to fix the cause. The wording differs by model range — each is shown below.
Reviewed 23 September 2026 · 2 sources
What it means
On the M-Thermal Arctic HT R290 monobloc (MHC ...WD2N7)
The manual says: Tsolar solar panel temperature sensor error.
Likely causes:
- See R290 service manual troubleshooting (section 6) for this code.
On the M-Thermal Split R32 (MHA outdoor + HB hydronic box)
The manual says: Solar panel temperature sensor (Tsolar) error.
Likely causes:
- Temperature sensor not connected properly or has malfunctioned.
- Damaged hydronic box main PCB.
Is it safe?
On the M-Thermal Arctic HT R290 monobloc (MHC ...WD2N7)
| Does the heat pump stop? | Not stated |
|---|---|
| Engineer needed? | Yes |
The manual does not say whether the heat pump stops.
On the M-Thermal Split R32 (MHA outdoor + HB hydronic box)
| Does the heat pump stop? | Yes |
|---|---|
| Engineer needed? | Yes |
The heat pump stops until the fault clears or is reset.
What you can check
- Read and note the exact code shown on the controller display.
- Check the heat pump's breaker/isolator at the consumer unit is on.
- Restart once via the controller (OFF then ON) as the manual allows; if the code returns, call an engineer.
What the engineer will check
On the M-Thermal Arctic HT R290 monobloc (MHC ...WD2N7)
- See R290 service manual troubleshooting (section 6) for this code.
On the M-Thermal Split R32 (MHA outdoor + HB hydronic box)
- Temperature sensor not connected properly or has malfunctioned.
- Damaged hydronic box main PCB.
Sources
- R290 M thermal Arctic HT Series Service Manual ↗ · 2025-10-15 v5 (from file name) · page 91 · Reviewed 23 September 2026
- M-Thermal A Series Split R32 Service Manual (Midea CAC, 202004) ↗ · 202004 (file v31) · page 50 (table); 59 (troubleshooting) · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026