The blower motor can stop for several reasons.
1 Fuse
2 Relay
3 Switches
4 Resistor Pack
5 Motor
If you can get 1 (Usually fastest) or more speeds then suspect the Resistor pack.
Nothing at all resulted in it being the motor on ours (£65 from PMA) but check the fuse first and replace if necessary
The easiest way to find out is to remove the glove box you can then reach the plug on the motor (Red & Black wires). Bend down in the footwell and look up and to the centre of the car, plug is behind crossmember but easy to reach and remove.
Test the wiring with a volt meter or test lamp if everything else is ok you will get around 12.1 volts when switch is in positions '1 to 4' and nothing when on '0'.
You can also see and feel the resistor pack by removing the trim around the electronic dash - I put a small digital camera in there and then had a look at the pictures on the computer. When the resistors fail they very very often damage the plug and wiring (Renault supply an upgraded part and loom). It is possible to replace it through the opening but you need to yank on the motor wiring to get some slack and very small hands.
I changed my motor ok by removing all the lower facias and then undoing the top facia and moving it into the car resting it on top of the steering wheel (Adjusted fully towards you and fully down). There are lots of screws and wires that need disconnecting so it's best to use a Haynes Manual but ignore removing the steering wheel part.
Faulty switch, faulty wiring, blown fuse, burnt out motor are some of the reasons it may not be working.
Good video here: http://www.youtube.com/watch?v=szMPmBxudWQ
The blower motor resistor assembly is located under dash on passenger side.
If your blower has packed up, or only works on the faster speed it is likely that the rheostat is about to fail, this is located behind the dashboard and is a pig of a job to do- A Renault dealership will charge the job 5 hours as the whole dashboard has to come away!!
location of heater blower resistor 2005 renault laguna
There is no relay there is a fuse in the front of the engine fuse box I think is 40 amp second one from the top trust mei learnt the hard way and there is one in the front fuse box under the steering
my infinity g-20 blower not working
crown Victoria blower not working and head lights.
Could be a number of reasons, including normal operation - if your car has Automatic Temperature Control or Semi-Automatic Temperature Control. Or it could be a problem with the blower itself or the circuit which runs the blower. Working on an AC system is generally not a do-it-yourself task, and there are several reasons why. I'd recommend you have a shop take a look at it.
gants, I have Denali 2004, the rear AC blower not working
While there are a variety of reasons your Lexus ES350 heater is not working, the most common 3 are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor.
While there are a variety of reasons your Lexus ES350 heater is not working, the most common 3 are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor.