Harvey~

I would first start with disconnecting power (probably best to pull the unit out if it's self contained) and wash the whole unit with soapy water & the garden hose to remove any salt residue…Then let it dry for days…

Salt is an amazing thing and can make connections where connections are not wanted…

After cleaning, and if you are still stuck in heat…For this test I would either cut one of the reversing valve wires on the unit, or remove that electromagnetic coil (single nut holding it on) If you do remove it be sure to stick a screwdriver in the hole of the coil to absorb it's heat & keep it from melting itself…Otherwise just clip one of it's wires where it can be butt connected back later (no need to remove coil for this)

With the coil removed or clipped…The unit should only cool…If that's the case, then all is good in the unit & we have a control problem.

If the unit still heats…We have a stuck reversing valve.

Steve~

Harvey~

I only meant for you to remove the electro magnet & stick a screwdriver in it for a test to see if it would cool…Not to run it that way for very long at all…I don't know if you have ruined the coil or not…If it will slide back on it may be ok, and now days it's hard to find replacements for the older coils, Ranco (who builds the valve & coil) has made several changes in recent years and none use the same coil…

I would say that if you don't need heat…Just clip one of those wires for now…Until…

Next is you likely have a thermostat problem that caused this whole thing….A repalcement Heat/Cool T-stat is Part # 4060603 and retails for $83.00…

Steve~

Unfortunately not…As of yet anyway…

You will either need to call me with a MC or Visa # Or E-mail it if you feel comfortable with that.

Steve~