F.00, F.04, F.05, F.10, F.14, F.15 — NTC Sensor Fault (Ecomax Pro 828E)

What does F.00, F.04, F.05, F.10, F.14, F.15 mean?

These codes collectively indicate a fault with one or more NTC (Negative Temperature Coefficient) sensors in the Ecomax Pro 828E boiler, which are critical for temperature measurement.

• Defective NTC sensors

Click steps to track your progress.

1. 1

   Attempt to reset the boiler by turning off and on the main power supply.

2. 2

   Inspect accessible wiring for any loose connections or visible damage.

3. 3

   Due to the nature of these NTC faults, contacting a qualified heating engineer is recommended for accurate diagnosis and replacement of the sensors.