Honeywell Smartfit F5 Error Code

[frozenfeet]

Hi All

I have downloaded the Honeywell error codes list, and followed the instructions to sort the F5 error code i was met with this morning on my controller.
It ays F5 is a HW open circuit. I have changed the cables from base unit to actuator, and swapped the actuator [from the CH just to test], and still getting the F5 error.

PLEASE PLEASE, Can anyone out there help me any further as i dont think its worth me buying a new actuator as i have already tested one that works, and it doesn't when fitted the HW value

Thanks in advance
Andie

 

[Andygasman2010]

If it's not the actuator and it's not the wire between the actuator and the board, must be a faulty board then!

 

[frozenfeet]

Cheers. But if the boards faulty, surely then nothing else would work right?, or wrong?

 

[picasso]

if you have an unvented cylinder , the thermal cutout may have tripped

 

[Andygasman2010]

Cheers. But if the boards faulty, surely then nothing else would work right?, or wrong?

Depends exactly how the PCB had failed I supose. If you've eliminated the cable and the actuator, what else is left??

 

[mickyg]

if you have an unvented cylinder , the thermal cutout may have tripped

that won't cause a fault and i think you have to use the smartfit cyl stat anyway. tbh i have no idea why people fit these stupid things

 

[frozenfeet]

Umm, still in the dark. Guess the plumber will be making a trip out then.

Thanks