Green star 24i fan running constantly

[Millsy 82]

I've got a fault with above and I have a nagging suspicion that it is a fan fault although everything is pointing towards pcb.

Have I just imagined this is the problem with the fans?

 

[Last Plumber]

Could be PCB,
Have you check wiring harness ( control wires), from PCB to fan ? For continuity.

 

[gassafe]

Quick call to Worcester technical I reckon, they soon be able to help, expensive mistake if your wrong lol!

 

[Last Plumber]

Too true !
Always best to get a second opinion from them !
Even if you're convinced your right. Once you buy the board, it's yours as you no doubt know.

 

[Millsy 82]

I phoned them twice and got 2 different answers. They have really gone down hill on there customer service I think.

 

[Last Plumber]

I've had the same experience. It's hard work sometimes and pot luck who you get. One day it can be a field engineer who is experienced and knows the job and the next can be just the opposite.

 

[bewsh]

Usually a fan fault, pcb on fan loses speed control

 

[Elgordo]

Try checking the live neutral for 220v first and then the other wires for DC voltage , I think you should get around 5v on these . If you can disconnect the low voltage wires and fan still runs then it's a faulty fan . Hope this helps.