Repair guides and support for gas and electric hot water tanks, boilers and household heat exchangers.

12 Questions View all

No hot water in boiler, keeps flashing F5?

My furriol boiler keeps flashing F5, and am only getting hot water for a couple of seconds at a time, will i need to get a new boiler, or can this be fixed?

Answered! View the answer I have this problem too

Is this a good question?

Score 1

Comments:

Have you switched boiler off and re-pressurised the system?

by

Add a comment

1 Answer

Chosen Solution

Lindsey, not sure what boiler you have, the only info I got is for a Ferroli boiler. Again, there are numerous of those. If you can a model number would be helpful. On the Ferroli Optimax the F5 error code is:

Fan problem

• Tachometer signal

interrupted, fan connection

• Fan damaged, debris in fan

Possible Solution

• Check the wiring and fan

• Check the fan, clean debris

Hope this helps you to get started. Good Luck.

Was this answer helpful?

Score 2

Comments:

F5 fault What a nightmare! I removed the fan and checked the fan using a plugged twin cable attached to the live and neutral point of connection on the fan itself. After discovering it was seized I had to buy another, that was the easy part!!!

Installation was a success but the fan still wouldn’t work it seems to be a PCB problem.

My advice to homeowners and engineers You spot a ferroli run away!

by

Add a comment

Add your answer

Lindsey will be eternally grateful.
View Statistics:

Past 24 Hours: 11

Past 7 Days: 64

Past 30 Days: 305

All Time: 15,524