Marine Air Systems

[bouttime]

Hi guys I could use your expertise:

1994 Sundancer, Marine Air Systems 9000 BTU heat/air with electronic ECU control.

Late last year the keypad went nuts so I entered the self diagnostic mode and it came up with "bad power button". So I said self this is an easy fix - ordered $200 replacement control, 4 screws, 1 cable and voila right - wrong.

Turned the breaker on this weekend and the display shows a solid "8" in the first digit position, fan is cycling on and off in about 5 second intervals, pump is not running, compressor is not running and not a single button on the display is responding. I have verified that all fuses are good (changed them to be safe), and wiring connections are all tight and clean. I cannot even get the ECU to go into self test mode.

Is my brand new controller bad?

Any suggestions would be appreciated.

Thanks

Jeff

 

[estebanj]

Don't know, but makes me wonder if the new controller is compatible with the 94 unit?

Esteban

 

[bouttime]

Estaban

You hit the nail on the head.

I was wondering the same thing even though the retailer I ordered it from told me he had verified that it was compatible.

I just got off the phone with Marine Air and was told that it is NOT compatible. They suggested I call the manufacturer of the display to enquire on old stock. I guess the only other option would be to go back to the old 3 dial setup but then I would lose a lot of the functionality.

We shall see.

Jeff