Heater blower motor

On many cars if the thermal fuse in the blower motor resistor pack has failed the highest speed blower may/will still work. On the highest speed the motor will be directly across 12v whereas on the lower speeds in series with one or more resistors AND the thermal fuse.

Instructions for replacement

I saw him this morning and will pass your info on. Looks like a right carry on. He said that the blower is still working on all speeds. Intermittent fault?

It may be simple as the spade electrical terminal on the back of the switch however more likely on older Vauxhalls.

I'll pass this on to him. Thanks.

In the case of daughters Corsa it (the intermittent blower motor) was worn brushes hanging up on the comm itself, but at nearly double the mileage you mention.

Easily proven in this case by applying a live and earth to the motor connector directly and hearing the motor spin briefly and then stop.

Cheers, T i m

I'll pass this on to him. He is not made of money and it would seem that a new motor is a couple of hundred quid - plus labour.

Thanks.

You are both welcome..

OOI, I saw a new Corsa blower motor on eBay, also for around £200 but there were plenty s/h for much less.

If going for s/h I think the donor vehicle mileage could be important here as I assume most people have the fan on all the time, be it blowing hot or cold?

Cheers, T i m

It may be worth getting some numbers off the old one first as I found th= e =

Peugeot Bippa blower motor was available as a vauxhall part for =C2=A347= quid, =

less than half the peugeot part.

AJH

That assumes the brushes are making contact with the armature when testing. Sometimes a knock or gentle spin by hand will result in contact and likely arcing.

eBay is also a source of plain basic brushes of various sizes for 12 motors for a few ££. If you're adept with a soldering iron its not rocket science to replace the brushes with generic ones.

Whilst I was walking my savage Westie I spoke to him. His/my recommended garage phoned him today and told him that both parts are available on the day of service for less that ?100 the pair. Seems that the garage took the time and trouble to phone around. Not bad is that.

Thanks for that. But, he is an old man. So am I.

Do you have a caliper or accurate means of measurement?

Do you or your friend have access to a decent soldering iron?

If yes to both it is a simple matter of cutting pig-tails and soldering new to old.

Where there's a will there's a way. Any excuse is laziness.

No

Mine is ancient and is like a poker.

The guy has trouble even walking. The card with the resister on it is behind the glove box which needs to be removed for access.

Seems that his garage rang him and said that the price for both parts is less than ?100.

For daughters Corsa they need to be 7.63 x 6.21 x (probably) ~12 mm and with the brush braid coming out the end and over to one side.

The original were crimped on with a small brass ferrule but no reason they wouldn't solder.

The bigger issue in this case was the com was so worn that I wasn't sure if it wasn't down to the insulator so if it would even last the amount of brush I had managed to reveal. ;-(

Cheers, T i m