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02-09-2013, 12:58 AM #1
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Fujitsu heat pump troubleshooting
We installed a Fujitsu 2 ton cassette type heat pump in 2007. It ran fine up untill we had a power failure. Now the condenser will not run and the red trouble code light is flashing one flash. The ceiling cassette runs and the hard wired stat seems to be working except for the EEE error message. The proper incomming voltage is present at the condenser. Our area has been plagued by power problems recently and I am wondering if this problem may have been caused by a power surge. I don't have much Fujitsu troubleshooting experience but I have been doing AC work for many years. I would really appreciate any guidance on how to proceed to repair this unit. I'm sorry I don't have the exact model number but the tag is missing from the unit. Thanks for any help you can give me.
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02-09-2013, 01:56 AM #2
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Re: Fujitsu heat pump troubleshooting
What is the model number of your indoor and outdoor?
Ha. Missed the bit about the model number being absent. Even the outdoor details will be helpful.Last edited by flyinkiwi; 02-09-2013 at 01:57 AM. Reason: Didn't see "label missing"
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02-09-2013, 02:08 AM #3
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Re: Fujitsu heat pump troubleshooting
PM me with your email address, I can send you some info that might help you work through diagnoses by the remote control.
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02-09-2013, 06:25 AM #4
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Re: Fujitsu heat pump troubleshooting
You need to read Error code from remote. Search this forum for how to do it. I already explained it in few posts.
P.S.
http://airconditioningfaultcodes.blo...ror-codes.html
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02-09-2013, 06:42 PM #5
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Re: Fujitsu heat pump troubleshooting
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03-09-2013, 06:59 PM #6
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Re: Fujitsu heat pump troubleshooting
Thank you so much for the information you sent me.The error code is 01 on the stat and we were able to find the model in our records, it is AOU24LX. According to the information you directed me to, code 01 means there is a com. failure between the indoor and outdoor units. How should I procede to trouble shoot this unit? Any help you can offer me would be greatly appreciated. Thanks again.
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03-09-2013, 07:11 PM #7
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Re: Fujitsu heat pump troubleshooting
wire 3 should be 120-150v ac pulsed signal- prob different in usa
if ok, order new outdoor pcb- the power module should be ok, also replace the condenser fan as this can take the board out- might be an idea to test the outdoor pcb- as theyre dc- refer to the post on the link - metal cased condenser fans can ground the outdoor pcb-
