Heat Pump - Outside compressor not working/fan not spinning - red lights?


Old 12-08-15, 12:28 PM
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Heat Pump - Outside compressor not working/fan not spinning - red lights?

I've got a Trane XL20i heat pump - temps have dropped into the 30s overnight and I noticed that house wasn't heating up. When I looked at our outside unit, I noticed the fan wasn't spinning and I couldn't hear the compressor running. I opened up the panel and noticed 2 red lights flashing - the top one(purple circle) flashed 7 times, and according to the manual, this meant a "Low Pressure Cut Out Fault" and the recommendation was to power cycle the unit. After a power cycle, the light stopped blinking, and both the fan and compressor now run. Heat is restored!

However, the 2nd red light (red circle) is still flashing 9 times and I can't seem to find anything in the manual about this led.

Any ideas?

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Old 12-08-15, 02:18 PM
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Don't be surprised when it locks out again, might be low on refrigerant.
Old 12-08-15, 05:42 PM
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Trane XL20i is the product line. Please post the full model number.

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