Verified boiler fault code

Biasi E14 Fault Code (BASICA COND)

Temperature-gradient circulation failure (greater than 2 K/s).

Safety disclaimer

Boiler repair help from Aza & Sons Services

Fault code summary

Manufacturer
Biasi
Fault code
E14
Fault type
Circulation, Pump, Overheating
Severity
high
Reset
No unrestricted user reset is confirmed; arrange qualified diagnosis if the code persists.
Applicable models
BASICA COND 24C, BASICA COND 28C, BASICA COND 32C

Quick answer

Temperature-gradient circulation failure (greater than 2 K/s).

What does this fault code mean?

Temperature-gradient circulation failure (greater than 2 K/s).

Common causes

  • Temperature-gradient circulation failure

Symptoms

  • E14 shown on the LCD

What can the homeowner safely check?

  • Check only the pressure display and external controls; do not access the pump or heating circuit.

Boiler reset information

No unrestricted user reset is confirmed; arrange qualified diagnosis if the code persists.

When should I call an engineer?

Contact a suitably qualified heating engineer when the fault persists, the boiler locks out, or the manufacturer instructions do not resolve it. For gas appliance work in the UK, use a Gas Safe registered engineer.

Engineer diagnosis

  • A qualified engineer should investigate pump operation, circulation and flow/return temperature sensing.

Applicable boiler models

Related fault codes

Manufacturer documentation

Biasi BASICA COND user manual and installation instructions

SIGNAL DISPLAYED BY THE LCD: | E14+ | Temperature gradient circulation failure (>2K/s) |

Last verified

2026-09-12

Frequently asked questions

What does Biasi E14 mean?

Temperature-gradient circulation failure (greater than 2 K/s).

Can I reset a Biasi E14 fault?

No unrestricted user reset is confirmed; arrange qualified diagnosis if the code persists.