Heat pumps · Error codes · Clivet
EcClivet · Sphera EVO 2.0 (MiSAN-YEE split + SQKN-YEE indoor)
Ec on a Clivet Sphera EVO 2.0: Additional DHW storage temperature sensor (Tbt2) error
Short answer
On a Clivet heat pump, Ec means: Additional DHW storage temperature sensor (Tbt2) error. 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: Additional DHW storage temperature sensor (Tbt2) error.
Likely causes:
- See Sphera EVO 2.0 service manual troubleshooting (p.49-105) for this code.
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
- 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
- See Sphera EVO 2.0 service manual troubleshooting (p.49-105) for this code.
Sources
- CLIVET SPHERA EVO 2.0 Service Manual SM21G011GB-00 (27-03-2023) (ManualsLib copy) ↗ · SM21G011GB-00 · page 47 · Reviewed 23 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 23 September 2026