Heater sometimes hot sometimes not on 2005 Kia Sedona

The expansion bottle is filling up. NO loss of power, oil level normal

by in Tacoma, WA on March 05, 2013
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1 answer 3 comments
ANSWER by , March 05, 2013
scan codes in a/c module and post so we can adv
COMMENT by , March 06, 2013
what does this mean?
COMMENT by , March 06, 2013
go to a shop and ask them o scan a/c module for codes
COMMENT by , March 06, 2013
Thank you for your time and help