Forum Discussion

87bob's avatar
87bob
Explorer
Jul 18, 2019

AC FAN CUTTING ON AND OFF?

My AC blower fan will run for hours just fine. Then for no reason the fan will cut off for a few seconds (the compressor still running) then it will come back on and do this several times and then run fine for more hours. What is going on?
  • I was just going to post a similar question. Mine (Dometic 13.5) seems like it has a momentary loss of power (although it doesn't) and then starts again. It does this several times also and then runs fine. Have fan on auto. Interested if we both have same problem.
  • As the trailer cools down the Dometic will switch to the next lower fan speed. As the trailer heats up it advances to the next higher speed. This is normal operation.
  • trailer_newbe wrote:
    As the trailer cools down the Dometic will switch to the next lower fan speed. As the trailer heats up it advances to the next higher speed. This is normal operation.
    This is so annoying I set fan on high or low. Even our little dog starts shaking when the fan is on auto and keeps going off and on and fast and slow.
  • Normal Operation...it's working as it should and to me is a good thing nor annoying to anyone in the trailer whatsoever :)