Marinaire manual or advise needed.

[MICHAEL ERBGUTH]

We just picked up our new to us boat a 97 330 Express Cruiser and are having trouble with the AC running on shore power. When we picked it up it was running fine and the cabin was very cold, we got an "E2" error and now I think we have pressed to many buttons and it won't cool. Does any have a manual or know how the controller works.


Any help greatly appreciated.

 

[jmcdboater]

The manual should be accessible online at the manufacturer’s website. Have you tried MarineAire’s website?

BTW, welcome to the Cult!

 

[Bill Curtis]

Marineaire manual can be had here.
https://marinaire.com/v/marinaire/Downloads/msbinstallationmanual.pdf

Error E2 shows indoor air temp sensor is loose or kaput.

 

[370Dancer]

The picture shows and E4 error. That is high pressure, usually from reduced water flow. You will have to remove power at the breaker to reset that one.

 

[MICHAEL ERBGUTH]

Marineaire manual can be had here.
https://marinaire.com/v/marinaire/Downloads/msbinstallationmanual.pdf

Error E2 shows indoor air temp sensor is loose or kaput.

This is perfect. Thank you so much !!!!

 

[Bill Curtis]

I pinged in on the E2 that was stated.

Yup, E4 is high head pressure - caused by low cooling water flow. Must correct the flow issue then reset the high head switch, if it is resettable.

 

[MICHAEL ERBGUTH]

Thank you all for the help !!!! We went to the boat yesterday and with the manual provided by Bill we were able to get the AC working and I have a good understanding of the system.

I really appreciate this community and all the knowledge. I hope to learn as much as I can and be able to help others in the future.