Cruisair Question

[stuffinbox]

Greetings,
I have been troubleshooting a tempermental AC unit of late. Mechanically all appears well but the compresser fan and pump are not cycling correctly. I re-programmed the controler to the factory setting first, the control did not accept keyboard commands without several attempts, and the system continued to operate the same way. I checked the multi pin connectors and the thermocouple and they are correct. I suspect a board problem and don't know which one to look into first but the SMXII was not responding to the keyboard commands properly and may be the guilty party. The system is less than 3 years old and well maintained. I have 2 systems onboard and would swap controls to confirm the problem but am concerned that I may fry the good one. Does anyone know any history on this equipment? The cost of 2 controls overshadows calling the more qualified.
Thanks

[GordMay]

http://www.cruisair.com/ has lots of on-line information

[stuffinbox]

I printed the available manuals for the library and used the info to return the controller to the factory settings. There are service techs available in my area, I always look into all systems when things need attention with the thought in mind that living aboard and being independant go hand in hand. The other folks on my pier are a great referance but this time no one had a similar system. I had hoped the control had a history and someone had been through the same situation. This board has always been the first place I go for information and so far it's all been good.

[AnchorageGuy]

Swap out the other control, you should not damage it. That will eliminate the control as the problem. If both units are on a single pump than the problem may also be in the pump relay box. But I don't think that would prevent the controller from accepting commands. It may just not act on the commands.

[svnisus]

I have a cruiseair system that is 6 years old. We are liveaboards and the system is on 24/7. When the air doesn't need to be cooled or heated we leave the fan running.
Haven't had either heat or cool on for a couple of weeks and then last night when we went to turn the heat on, nothing happened. I kept pushing the button and it didn't do anything. Everything else including the cooling button works. I know it's got to be the button...does anyone know if there is a reset or someway around having to replace the entire control panel as it's going to be around 32 degrees tonight?

[AnchorageGuy]

You can't always assume the problem is the control panel. The fact is although it happens from time to time the control panel usually is not the problem. Too many issues to troubleshoot here. You need a tech on site with equipment to diagnose.

[marno]

I think the buttons on these units may well be problematic. I just replaced the panel on mine because the temp up button didn't work. Solved the problem. I couldn't see an easy fix looking at the back of the panel.

[stuffinbox]

I found someone with a sister system and the pump ,compresser, and fan running when it should not or just not running was corrected at the control panel. I also have the same button issues causing the programming difficulty. I am going to call out a Tech. The panel was corrected by replacing a componant and not the entire board and at the same time he can confirm that the keyboard needs replacing. I'll report back...next paycheck.