The temperature sensor is disconnected or open circuited. The manual's first action is: “1. Check that the temperature probe is correctly connected to the connector. 2. Substitute the temperature probe if its own electrical resistance when empty is more than 2 kW. 3. Substitute the electronic card. After every operation, carry out the "B" procedure to verify the positive outcome.”
- Model
- Merloni Various (e.g., F__7 C/P, FB97, FO87)
- Display shows
- Temperature sensor disconnected or open circuit (F3E3)
- Type
- Fault code
- Source
- Manual p. 13
What F3E3 means
Temperature sensor disconnected or open circuit p. 13
Common causes
- Temperature sensor disconnected or open circuit. p. 13
What to do
- 1. Check that the temperature probe is correctly connected to the connector. 2. Substitute the temperature probe if its own electrical resistance when empty is more than 2 kW. 3. Substitute the electronic card. After every operation, carry out the "B" procedure to verify the positive outcome. p. 13
Before you service the product, read the safety instructions in the manual p. 28.
If F3E3 is still not resolved
- Substitute the display card. p. 28 “Substitute the display card.”
This page summarises what the manufacturer’s manual says about F3E3; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Merloni. Found a mistake? Report an error.