pecan2phat

Professional Commuter
Location
Wallingford, CT
Rating - 100%
85   0   0
Koralias are notorious for the impellers going backwards or in reverse when restarted or used in an on/off wave maker mode.
Suggest you turn it on and off until it flows in the right direction or you can be impatient like me and stick something into the prop to stop it then let it spin to see if it corrects itself, might take a few times this way also. Try the on/off first if your afraid the other way may break something.
 

Kworker

Advanced Reefer
Location
Long Island
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71   0   0
koralias are notorious for the impellers going backwards or in reverse when restarted or used in an on/off wave maker mode.
Suggest you turn it on and off until it flows in the right direction or you can be impatient like me and stick something into the prop to stop it then let it spin to see if it corrects itself, might take a few times this way also. Try the on/off first if your afraid the other way may break something.

+1
 
C

Cu455

Guest
Rating - 100%
71   0   0
If you powerheads are going into reverse I would make sure the front is covered or get a new one. I am pretty sure that my powerhead went into reverse and took my puffer in.

20140506_072426_zpsfd09a5ed.jpg
 

ssminnow81

Advanced Reefer
Location
brooklyn
Rating - 95.7%
67   3   0
Also there's a small round rubber pc on the inside cage of the powerhead. If that comes loose it will make the impeller go in reverse for whatever reason. Open it up and see if there's anything moving around
 

BZOFIQ

Advanced Reefer
Location
NYC
Rating - 100%
46   0   0
Call me crazy but I've never had this happen.....and I am a big koralia fan and have used a ton over the years; initially the 4s and then switched out for magnum 8s. Love them.
 

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