E7 — Temperature sensor
The unit's internal temperature sensor has failed.
What does fault E7 mean?
The unit's internal temperature sensor has failed.
How is fault E7 cleared?
- Clear the fault. If it returns, the unit needs service; contact your dealer.
To clear a fault, press the Cancel key on the main screen.
Which model is right for the pump?
Several HYDROSET PM821 faults appear when the unit's rating does not match the pump's nameplate current. The table below gives the right model for each pump current.
| Pump current | Pump power | Model | Typical use |
|---|---|---|---|
| up to 8 A | up to 1.5 kW (2 hp) | PM821-8 | 1–4 floors, homes and shops |
| 8 – 16 A | up to 3 kW (4 hp) | PM821-16 | 5–10 floors, booster sets |
| up to 25 A | up to 4 hp | PM821-25 | Residential, commercial and agricultural |
The current on the pump nameplate decides the model, nothing else.
Frequently asked questions
How is a fault cleared?
To clear a fault, press the Cancel key on the main screen.
What does fault E7 mean?
The unit's internal temperature sensor has failed.
Last updated: