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Fujitsu "AOU18RLXFZ 18,000 BTU Halcyon HFI Outdoor Unit" - Page 6 Questions & Answers
FUJITSU AST17RSA-W. Motor stays on when I turn it off.
Sounds like the contactor/relay for the compressor is stuck closed. I haven't got a circuit diagram but if you're lucky you may be able to just change the relay. If it's part of an integrated circuit board you will probably be out of luck as this is a very old model and I doubt that many parts are available.
Removal of cover from ASTA09LCC fujitsu air con
First remove the filter cover by lifting it up then sliding down the retaining tabs on each side next to the hinges. Next pull out the filters. Then remove the screws from the front panel remembering that there is one screw behind the terminal cover. Then you need to use a flat blade screwdriver to lift the three clips holding the top rear of the cover to the rest of the casing at the left, middle and right (see photo) then pull the cover forward. I'm not certain but from memory, you might have to unhook the head unit from the bottom of the backing plate for this to come off. Be careful you don't break the cover while doing this. You may need to get a ladder to see the top clips.
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