Quote:
Originally Posted by matic33
Thanks for answer
does anybody know how communication between indoor and outdoor unit work.
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I believe that different brands might have different comms.. At least on the older models.
On my Sanyo outdoor unit main board, there is a set of pins called 'T-Run'.
when I wanted run the outdoor unit without the indoor unit, I plugged
a switch across those two 'T-Run' pins..
When my 4-way valve default was in the wrong direction, I unplugged it's power and got the cooling out-put I wanted..
http://ecorenovator.org/forum/geothe...project-2.html
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The main board got zapped last winter. If ever it's repaired, I may try
using the Outdoor unit as a hotwater heater.. I would use the
T-Run pins..
Maybe you have some similar maintenance mode connection on your Gree.?.