no heat /adjust steering wheel

[mymillenia]

I just had a loss of heat today on my 98 Mazda Millenia. Worked fine at startup and I turned it down. I tried to turn it back up and now no heat at all. Air and fan work but no heat. I have no Idea what it is. I have looked in the owners manual and there is no troubleshooting section on this. Anyone have any ideas. I also have a problem with the tilt steering wheel. It works intermittently and at times gets stuck in the wrong position. The manual adjust switch works intermittently. I have taken to leaving it in one position and not using the adjust. Sounds like a switch. It this a owner or dealer fizable problem. Thanks, Mike

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[keninn]

couple possible solutions to the heat. c/c amplifier could be fubar. this tells which blende door to open, and how much. which leads to the next possibility, a bad stepper motor, which moves the blende door. since the amp is way easier to change, look for a used one on ebay, they should be well under 50 bucks. try that, then, if that dont work, you get to pull the dash.

tilt steering wheel motor could be bad, as could the relay. i havent done one yet, but i do have a spare motor for when it happens. couple of posts i have read say it is an easy job, but the motor is not cheap.

[r4ladyeyes]

I have a 98 Millenia and every winter I have no heat. I have ac great all summer and when I switch it back to heat during the weather change the heat does not work. I have found that the door does not shut to allow the hot air to circulate into the cab due to lint obstructing the arm from moving. I found that the arm frees easily with a squirt of wd-40...has worked everytime for me and saved me the cost of taking it into the shop for a mechanic to repair.
r4ladyeyes