ES - 5th Gen (2007-2012) Discussion topics related to 2007+ ES350

AC and Heat don't work intermittently, Help!

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Old 10-30-17, 02:19 PM
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cferriter
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Default AC and Heat don't work intermittently, Help!

It started about a year ago. While driving, fan blowers just stopped. This lasted about 2 hours, and they just kicked back on.

No issue for last 9 months. About a month ago, the fans wouldnt blow on any setting. This now happens about ever week for about 20 minutes, and eventually kicks back on.

Any ideas where to start troubleshooting?
Old 12-30-17, 04:40 AM
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cferriter
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Default Updated (Had Lexus repair) AC and Heat don't work intermittently

Originally Posted by cferriter
It started about a year ago. While driving, fan blowers just stopped. This lasted about 2 hours, and they just kicked back on.

No issue for last 9 months. About a month ago, the fans wouldnt blow on any setting. This now happens about ever week for about 20 minutes, and eventually kicks back on.

Any ideas where to start troubleshooting?
**Update Dec 30, 2017**
The problem continued to get worse, to the point where the fan would not blow at all. After bringing to dealership, they quickly troubleshot and replaced the fan blower. Just under $400 out the door. Expensive, but nice to have heat and AC.

Just thought I'd update for next person that has similar issue.
Old 12-31-17, 09:43 AM
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ThumperPup
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sorry i didn't see this when you first posted it i would have suggested the fan blower motor relay
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