Ideal · Logic MAX Combi²
Flow Thermistor Fault boiler fault code
Logic MAX Combi² — models C24 / C30 / C35
Get a Gas Safe engineer
Free. Enter your postcode.
What Flow Thermistor Fault means
Flow thermistor fault.
Gas Safe engineer: If the message remains or returns after one restart, contact Ideal or arrange a Gas Safe registered engineer.
If you smell gas, a CO alarm sounds, anyone feels unwell, or there is an unsafe flame, leave and call 0800 111 999 from outside.
Renting? Report it to your landlord or housing provider first. They are responsible for gas safety and boiler repairs, and the repair should not cost you.
Safe check
Restart the appliance once using the normal controls.
When to contact an engineer
If the message remains or returns after one restart, contact Ideal or arrange a Gas Safe registered engineer.
Source and provenance
- Logic MAX Combi2 User Guide · UIN 237660 A01 (10/2023) · §1.9 Display Functions — Fault Messages, printed pp. 10–11
user guide
10/2023 · UIN 237660 A01