Testing a fan

[m4tty]

Hi,

Been having probs with a fan (manrose shower kit). As soon as it was connected it took out the 5A Rewirable fuse. I have tested the resistance of the fan and its 517 ohms. Is there any other way I can test this fan. I could wire it up with a plug with 3a fuse I suppose. If its not the fan itself must be the PCB.

Any ideas on ways it can be tested apart from the bang test lol.

Cheers

 

[Andy™]

plug-in 5a MCB (temporarily) in place of the 3036?

 

[SPECIAL LOCATION]

99.99999999999999999999999% its a knackerd PCB....

loads & loads of them use the same timer circuit PCB...

If the existing fan is all brand new get a warranty replacement..

If its been in there for more than 12 months..

buy one of these...

Manrose Axial 20W Bathroom Fan | Screwfix.com

swap the PCB out of it..

Then either keep the new fan for use as non-timer operation

or take the new one back as faulty!

IIRC there's a big fat resistor on the timer PCb that can often burnout..

anyway the PCBs have a regular tendency to go faulty...

:coffee :Salute

 

[Andy™]

IIRC, all manrose timer boards are the same. and you can buy the timer bord seperately. but its not far from the price of a fan

 

[Chr!s]

Hi,Been having probs with a fan (manrose shower kit). As soon as it was connected it took out the 5A Rewirable fuse. I have tested the resistance of the fan and its 517 ohms. Is there any other way I can test this fan. I could wire it up with a plug with 3a fuse I suppose. If its not the fan itself must be the PCB.

Any ideas on ways it can be tested apart from the bang test lol.

Cheers

517 ohms, that's a high reading for a fan winding, the insulation might be breaking down under load and shorting.

 

[Andy™]

517 ohms, that's a high reading for a fan winding, the insulation might be breaking down under load and shorting.

that might not be the resistance of the motor, but that of the PCB

 

[SPECIAL LOCATION]

By-pass the timer PCB & my tuppence says the fan will work good!

 

[Chr!s]

[quote name='Andy

 

[m4tty]

Thanks for the replies guys. The measurement was taken from opposite end of pcb from incoming cable so it was measurement of fan windings only.

Andy I did swap it for a 6a bsen 60898 mcb plugin mcb. Cost

 

[Andy™]

[No message]

 

[m4tty]

Will do mate thanks