Gree Ductless Split F0 Error

justinc978 · May 24, 2017

Sorry guys I don't have the m# s/n on hand atm but heres a quick rundown...

Customer bought a Gree ductless split with 2 heads and 3 port condenser online(oh boy -_-). Installed them, install went fairly smooth. Both heads ran fine for one day, pretty much all day long.

Next day, the F0 error code is displayed after running for about 20 mins. Shut off disconnect and reset, same thing happens. Shut off breaker same thing happens. The F0 error code is indoor ambient sensor fault(after researching online, bc of course they didn't come with an installation or service manual:eek2

. The harness for the sensor is plugged in main pc board just fine.

Does anyone know what the resistance should be on these sensors? Also, what is the com manual harness for these things? It is unplugged and I don't see a spot for it. 4 wire harness.

First and last Gree I install I can tell you that much lol.

Only one head is throwing this code btw

Metalman0880 · May 24, 2017

This is from the manual for the unit I have in my office. It's only a single head 9K unit. Here is a list of the models it's good for since you didn't list yours.

I've never had an ounce of problem from mine.

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justinc978 · May 24, 2017

Its the big O, or 0, not Fo. Im sure Ill be there again tomorrow so I'll get the m#. The error code FO is displayed on the unit as FO with no flashes that I was able to see.

Side note, do you like Gree? Their not popular around here as this is one of the few I've seen

Metalman0880 · May 24, 2017

We've put several in with no problems. Our wholesaler stocks parts for them. That in it's self is a winner in my book.

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HVAC_Marc · May 25, 2017

Who sells Gree in our area?

blueguy043 · May 24, 2017

Are all the heads in the same mode? IIRC, we had a service call a couple weeks back with a weird code on a multizone unit, and it turned out to be one head was in a different mode than the others. We install Gree and have had mixed results - most of the issues are board related in the heads.

justinc978 · May 24, 2017

Ahh, interestinggg. The heads are pretty close to each other as well. The first head is located through the first set of doors off the plaza sidewalk, then their is a second set of doors and the second head is right there to the left so they are virtually ten feet apart from each other. That will be something to check.

I'm just trying to exhaust all possibilities before I replace this PC board

Metalman0880 · May 25, 2017

ABR

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HVAC_Marc · May 25, 2017

I rarely go there... that's why I didnt know

Metalman0880 · May 25, 2017

They are good people there. Always take care of us.

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HVAC_Marc · May 25, 2017

Good to know. I just peeked at their web site and the brands they offer. I have a customer with a few Peerless boilers, so it'll be good to know where to get parts.

Metalman0880 · May 25, 2017

If you call looking for that stuff there Steve Mitchum is the hydro guy. He's pretty good and knowledgeable.

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HVAC_Marc · May 25, 2017

Thank you

I'll make sure to tell him "metalman" said to ask for him

jmac00 · May 25, 2017

I just went through the Gree Training with Gerry Wagner.....he was screaming "IT'S NEVER THE BOARD"

if the unit is throwing a E7, thats a conflict error code I think, one head is calling for heat, the other for cooling. You can assign one indoor unit as the "Mode master"

Not real sure about a F0 code?

justinc978 · May 26, 2017

Never the board with a mini split? Thats new

Gree Ductless Split F0 Error

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