No Heat or Air or blower.

Before you change the fan speed control module resistor check all the connections are between this and the fan motor are clean. Carefully open and close after cleaning the outside. This unit is difficult to access and it is time consuming unpleasant job. I had the same symptoms and changed it for nothing. It was just dirty at a blower motor connector.

Have you checked the switch in the dash. Also check the blower motor resistor.

Is the engine getting up to temperature?

If not, then replace the thermostat.

try fuse panel, if not a blown fuse check the switch

List of possibilities:
blower motor
resistors
relay
on/off switch.

This is not the item to attempt to fix by yourself if your a senior citizen. Because of the location of these items this is a back breaking job.
Unless the shop you go to attends to its customers while wearing ski masks take the vehicle to them . This is not a fixed income reaper. Good luck.

This sounds like a BSC blower speed controller. it is located outside on the a/c case just below the heater hoses. to diagnose just wiggle the connector with the key on engine off, you should hear the fan come on, then replace it.

Hello Callahan5922....this sounds like a stuck blower motor resistor. I assume the blower won't function in the a/c mode either? If you have a digital multimeter you can check this. I believe it's fuse #2....if the digital indicator goes up or down when you increase or decrease the fan speed thats good. Locate the blower motor resistor....you wil find it located on the fire wall behind the right valve cover hiding behind the heater hose, it's about the size of a cigarette pack. With the engine off, and key in on position, turn the A/C on High, and rap a tap tap tap on the resistor. You might be suprised when the blower motor takes off a runnin,
I hope this is the answer you need and i was able to help solve this for you. Good luck...

sounds like the blend door is stuck at the heater/blower box. check all connections leading to the box behind the glovebox, and behind the control head.

if you have checked the fuse and they are good and there is power going to the blower replace the blower you should be able to pick one up at a good salvage yard at half the cost.

If it is the blower motor that isn't working you shouldn't have cold air blowing out either, if that is not the case, and you have cold air blowing out the vents I would guess that it's a problem with the blend doors. They redirect the flow of air to change the temp.