EcoRenovator  

Go Back   EcoRenovator > Improvements > Geothermal & Heat Pumps
Advanced Search
 


Blog Register 60+ Home Energy Saving Tips Recent Posts Search Today's Posts Mark Forums Read


Reply
 
Thread Tools Display Modes
Old 01-10-19, 01:22 AM   #1
AC_Hacker
Supreme EcoRenovator
 
AC_Hacker's Avatar
 
Join Date: Mar 2009
Location: Portland, OR
Posts: 3,993
Thanks: 300
Thanked 699 Times in 524 Posts
Default Mini-Split, blinking red light....

Hello All,

My trusty Sanyo Mini-Split has blinking red indicator, and it is producing no heat. This may last for many hours, until I turn it off.

It is an intermittent condition, and If I turn the unit off completely and wait several hours, turn it back on, it will function. However this above mentioned behavior seems to return..

It is Model Sanyo KS0971, as I recall. It is a 3/4 Ton unit.

Earlier this year, I thoroughly cleaned the outdoor unit coils. And I also regularly vacuum and blew out the indoor unit.

Any help will be greatly appreciated.

-AC_Hacker

__________________
I'm not an HVAC technician. In fact, I'm barely even a hacker...
AC_Hacker is offline   Reply With Quote
Old 01-10-19, 03:57 AM   #2
stevehull
Steve Hull
 
Join Date: Dec 2012
Location: hilly, tree covered Arcadia, OK USA
Posts: 824
Thanks: 241
Thanked 164 Times in 122 Posts
Default

My son had a similar problem and we found out the unit had a small leak at the flare (sniffer found it). So we sucked gas out, re did flare (my fault as I was not as careful as I should have been originally) and filled using weight not psi.

Interestingly, the unit worked OK for cooling, but not heating. The tech at Gree told me about checking for a leak. Trying to get schematics for these units is tough.

Now works like a charm. I hope it is that simple for you.

Thanks for ALL your posts in the past!

Steve
__________________
consulting on geothermal heating/cooling & rational energy use since 1990
stevehull is offline   Reply With Quote
Old 01-10-19, 06:43 AM   #3
jeff5may
Supreme EcoRenovator
 
Join Date: Jan 2010
Location: elizabethtown, ky, USA
Posts: 2,246
Thanks: 330
Thanked 564 Times in 471 Posts
Send a message via Yahoo to jeff5may
Default

What ever happened to the other one? I basically threw in the towel on the general purpose control. Too many special needs and lack of support to help program and standardize.

Here's a general sanyo error codes list:
Sanyo Air Conditioning Fault Codes

Found your manual. I will attach. Troubleshooting starts at page 42. Good luck
Attached Files
File Type: pdf 170661.pdf (1.91 MB, 10 views)

Last edited by jeff5may; 01-10-19 at 07:42 AM..
jeff5may is offline   Reply With Quote
Old 01-11-19, 01:27 PM   #4
AC_Hacker
Supreme EcoRenovator
 
AC_Hacker's Avatar
 
Join Date: Mar 2009
Location: Portland, OR
Posts: 3,993
Thanks: 300
Thanked 699 Times in 524 Posts
Default

Quote:
Originally Posted by stevehull View Post
My son had a similar problem and we found out the unit had a small leak at the flare (sniffer found it). So we sucked gas out, re did flare (my fault as I was not as careful as I should have been originally) and filled using weight not psi.
Steve
Thanks Steve for your response,

I think my problem may be different than the one you described:

* There may be a slow leak as you suggested, but I set up the unit very carefully seven years ago. Of course this doesn't mean that it isn't leaking now.

* My unit is not blinking red all the time. It may go several days or even weeks before the pattern re-appears. Then if I shut it completely down for some short period of time, turn it back on, it works exactly as expected.

* It's the intermittent aspect that has me stumped.

I was previously experiencing a gradual decline in performance, but then discovered that the fins on the outdoor unit were seriously blocked, and I used foaming fin cleaner (really works well) and water jets from inside the unit, squirting out. Ended up with shiny clean and clear fins. That completely remedied the performance decline.

I do all the standard vacuuming of the fins on the indoor unit on a regular basis. I also used high pressure air to blow out any dust from the fins. Almost none came out which made me wonder if either I had done a spectacular job all along, or my pressurized air was not getting to places that really needed cleaning.

Right now I am suspecting that the fins of the indoor unit needs cleaning.

Here are a couple of videos of that process. The first video is thorough, the second video is more rigorous, and features a "muck collector" that could be easily fabricated by any determined Ecorenovator.

FIRST VIDEO:



SECOND VIDEO:



...and another which seems to be a training video for a mini-split cleaning company, to fill in any gaps that an Ecorenovator might have:



Your thoughts??

-AC_Hacker
__________________
I'm not an HVAC technician. In fact, I'm barely even a hacker...
AC_Hacker is offline   Reply With Quote
Old 01-11-19, 01:30 PM   #5
AC_Hacker
Supreme EcoRenovator
 
AC_Hacker's Avatar
 
Join Date: Mar 2009
Location: Portland, OR
Posts: 3,993
Thanks: 300
Thanked 699 Times in 524 Posts
Default

[QUOTE=jeff5may;60453]

Here's a general sanyo error codes list:
Sanyo Air Conditioning Fault Codes

Thank for that, but my unit doesn't have an alphanumeric indicator, only flashing lights.

The PDF may answer my dilemma. Thanks

-AC_Hacker

__________________
I'm not an HVAC technician. In fact, I'm barely even a hacker...
AC_Hacker is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 09:12 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Ad Management by RedTyger
Inactive Reminders By Icora Web Design