Peugeot 307 - Heater blower motor - wellman

My daughter has a 52 plate 307 Rapier hatchback which has been an excellent car. However the other day the heater blower motor sddenly stopped working whilst on the fast speed and will now not operate on any speed. I thought the problem would be a fuse but am unable to fine any reference to a fuse in the Haynes manual or the Peugeot handbook, I have now been told the problem is likely to be the blower motor resistor faulty, however previous experience with blower motor resistors (Vectra's) the fan will still usually operate on full speed.

Can anyone help and advise, if it is a fuse where is it located and what number/rating

Regards Wellman

Peugeot 307 - Heater blower motor - countryroads

Should be fuse 18 in the fuse box under the bonnet, rating is 40amp.

It did change design though at some point, if its not the right one let me know...

Edited by countryroads on 07/01/2013 at 15:25

Peugeot 307 - Heater blower motor - Collos25

At 40amps its controlling a lot more than just the heater fan if its blown this fuse then I would imagine the car will not go.

I would check first if you have 12v at the fan motor .

Peugeot 307 - Heater blower motor - elekie&a/c doctor

The heater blower motor faults on these are a real pain.The most common issue with these is the fan speed resistor overheats and burns the pins and connector plug.Peugeot do a repair loom and resistor for around £100 but fitting is very awkward and requires removal of various parts of the dash.The other point to remember is the fan circuit only works with the engine running.hth

Peugeot 307 - Heater blower motor - countryroads

According to the diagram, it is the only unit protected by that fuse.

It does seem a high rating, the external fuses for the engine cooling fan are lower rated but I suppose there are relays involved there....

If you are also having trouble with the stereo or instrument panel there is another fuse to check but if those work then that isnt the trouble.

I hate car electrics frankly, especially on the French ones!

Peugeot 307 - Heater blower motor - Quicksilver

Use a meter before the resistor pack to see if there is any voltage present. If yes then probably the resistor pack is now 100% open circuit or the connectors are bad.

Take your time and be methodical in your approach. This will eventually lead you to the problem.

Q.

Peugeot 307 - Heater blower motor - Peter.N.

Peugeot/Citroen fans were notorious for burning out fuses and fuse holders, the original 30 amp fuse was not heavy enough so was replaced by a 40a an later models.

Peugeot 307 - Heater blower motor - Collos25

I do not believe you need a 40amp fuse for a tiny motor don´t forget there are two types of fuse quick and slow blow ,a slow blow will carry 60 amps before it blows as much current as some car batteries can produce you may as well use a 6" nail.

I do not dispute there is a 40amp fuse for the fan but there must be something drastically wrong with the circuit design.

wbsatwestmount.blogspot.de/2007/09/diy-fix-broken-...l

Interesting reading if you want to change the parts yourself.

Edited by Collos25 on 08/01/2013 at 10:00

Peugeot 307 - Heater blower motor - wellman

Many thanks to all who replied with help & assistance, fault traced to faulty fan speed resistor and burnt wiring, both replaced and all is now OK.

Again many thanks

Wellman

Peugeot 307 - Heater blower motor - wellman

Hello

Many thanks for your email, unfortunately I am still unable to locate the problem.

Both the Peugeot and Haynes manuals do not appear to tie up with the fuses on the car, the only fuse shown in the wiring diagram in the Haynes manual is F12 10A for the BIS interface. The Haynes manual does list F18 40A for the air conditioning as located in the main fuse box but the air conditioning works fine, under the bonnett F18 is a yellow fuse which I understand is rated at 20A and is not blown, the Peugeot book does say this is rated at 40A tfor the blower motor but Haynes shows this as rated at 10A for the diagnostic connector so all is confusion. Obvious the weather at present does not help in trying to locate the fault as I do not have covered facilities

It looks like a job for a repair centre.

Many thanks for your help

Regards Wellman

Peugeot 307 - Heater blower motor - wellman

Hello

Many thanks for your email, unfortunately I am still unable to locate the problem.

Both the Peugeot and Haynes manuals do not appear to tie up with the fuses on the car, the only fuse shown in the wiring diagram in the Haynes manual is F12 10A for the BIS interface. The Haynes manual does list F18 40A for the air conditioning as located in the main fuse box but the air conditioning works fine, under the bonnett F18 is a yellow fuse which I understand is rated at 20A and is not blown, the Peugeot book does say this is rated at 40A tfor the blower motor but Haynes shows this as rated at 10A for the diagnostic connector so all is confusion. Obvious the weather at present does not help in trying to locate the fault as I do not have covered facilities

It looks like a job for a repair centre.

Many thanks for your help

Regards Wellman

Peugeot 307 - Heater blower motor - elekie&a/c doctor

Put the fuses aside for the moment.Take out the glovebox and just to the right ,clipped onto the side of the heater box,is a black connector plug.There are 2 large wires.The red is the power supply to the fan motor,via switch and speed resistor,.and the black is earth/ground.Check power to the red wire,engine running.If power is present ,then the fuse is ok.hth

Peugeot 307 - Heater blower motor - chickC

I have checked the actual blower motor current while I was repairing the burnt out rehostat plug connections on my 307 HDI. It was 30 amps. Close to half a horsepower.

Nearly jumped out of my hands so watch your fingers.

Regards,

chickC

Peugeot 307 - Heater blower motor - lpickerill82

Same problem on my peugeot fix it myself, it will be the heater resister easy to get to if you open the heater flaps, think it just a twist a pull, that will be more likely to have blown or burnt out. Also the loom connectors need to be check, more likely you will have to replace the loom. It about £60 to £100 for the loom and resistor from the Peugeot Garage. The loom was hell of a job to do tight spaces but manageable.

 

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