Open both front doors, remove everything, replace heater core, reinstall everything. Don't laugh, that is pretty much what you have to do. If you want to tackle the job yourself I would suggest purchasing a shop manual for that vehicle to help you through step by step.

To replace the Air blower on a Volvo S80, you will need to disconnect the blower motor connecter and the screws holding it in place. Then detach the fan and retainer clip. Please inspect your new Air blower to make sure nothing is broken, and then you will re-attach the connecter, screws, fan, and retainer clip.

under the glove box is a 4 prong multi connector( white plastic ) behind the blower. onplug it ( Very tight quarters). The Part it plugs into can be removed with 2 screws 5.5mm socket. Pull it down and the resistor pack circuit board is soldered to it. Part is under $30

Under the dash? Thought it was under the hood...or beneath wind shield somewhere. Under the dash, passenger's side, near the firewall.

Vent free heaters can be purchased from retailers such as Canadian Tire, Lowe's or Home Depot. They can also be purchased online from websites such as eBay.

One can buy a micathermic heater from Home Depot. It can be found and ordered online from their website (although shipping prices apply) or bought in store.

you can purchase an makita compressor at their company site that can help you with answers to your questions online . you can also phone them and see about their prices and what they offer at their personal site .

One can purchase Honeywell heating controls by going to your local electronics store such as Best Buy. A dedicated agent will be happy to help you find more information on their official website.

The following can cause this problem..................

1. Bad blower motor.

2. Bad blower motor wheel.

3. Trash in the blower housing...

You need the owners or installers manual, jumper lead wire set - not car battery jumpers -- electricians meter, spare parts. All the above and more depends whether you have a milivolt or electronic controlled gas heater.

K

A motor does not provide energy. It converts electrical energy to mechanical energy. From a circuit standpoint, the motor is considered a load (similar to a resistor). Resistors convert electrical energy to heat energy.

It doesn't matter which way the blower motor turns, it is the angle of the blades that matters.

A ceiling fan that mounts directly to the ceiling with no down-rod.

Behind the battery. You need to take out the battery, and the battery tray, then it's easy to access. Keep in mind that the resistor may have burned out because the blower motor is failing.

Start by diagnosing to identify the problem. Have the relays and fuses been checked? Is there power going to the blower motor? If so, does it go to the blower motor on all settings, or just on the high setting? If that's the case, it's the resistor you need to replace. If there's no power going to it, you need to see if power is going to the blower switch, and if you have continuity at the switch. If everything checks out, and the blower motor doesn't respond when power is applied to it, you need to power and ground it from a separate source and try applying power again. If it works at this point, you have a bad ground, and need to repair it. If it doesn't, then the blower motor is bad, and needs to be replaced.