i might have left it on the yeast for a solid 2 weeks..perhaps 3 weeks. at that point i would have racked to keg or bottle. any off flavors have best chance dissipating in primary on the yeast. now as for as yeast derived phenol-banana and clove, these are characteristics of your beer. higher temps more banana. while cold conditiong/aging can reduce the banana, IME it wont remove it completely.
as far as chlorine in water, yes that can cause off flavors. you want to keep chlorine out of your beer-not sure if this is your issue or not.
Yikes, I was afraid I took it off too early... I don't even remember my reasoning. Do you suggest leaving it? Or any cold conditioning?
As of right now, it taste like rubber and then the after taste is somewhat enjoyable, where I pick up the typical weizenbock flavors...
not sure about rubber taste..perhaps its something different that you cant put your finger on? if its burned rubber thats a different off flavor ..."skunky" and caused by other things. i'd let it ride another week then bottle or keg for a few weeks of conditioning.
here's description of chlorophenol issue:
Tastes/Smells Like:
Plastic, Vinyl, Iodine
Possible Causes:
Using chlorinated tap water to brew or rinse equipment is the most common cause
for plastic-like or medicinal flavors. Medicinal flavors can also be the result of using
cleanser or sanitizer that is chlorine or iodine based. Some wild yeast will contribute
to a similar medicinal taste.
How to Avoid:
Don’t use chlorinated water to brew or to rinse equipment that will come into contact
with the beer. If chlorinated water must be used, use a water filter that removes
chlorine or boil the water for 15 minutes and then cool to room temperature to force
out any chlorine that may be present. Always use the recommended amount and
concentrations of sanitizers. Most sanitizers will not cause any off flavors when used
properly. When using bleach, use one-half ounce per gallon of water, let equipment
soak for 10 minutes and always rinse with sanitized (pre-boiled) water.