Replacing Webasto 16,000 BTU on R-27 OB

[AG3]

Our Webasto is showing the E-3 error message. Still under warranty so Webasto will provide a replacement unit.

Our local technician is wondering how to remove the old unit and replace with new. Anyone have experience with a similar problem?

It seems like there are three ways to remove the old unit:
1) Straight up through the hole under the helmsman's seat removing the whole thing in one piece.
2) Disassembling part of the old unit (the blower or intake vent cover, for example) before removing through the hole in the helmsman's seat.
3) Removing the old unit through the end of the helmsman's seat, by first removing the microwave and the wood panel.

Anyone had this work done and which method was used?

Thanks in advance,

Al

 

[KKRCRACE]

Have you considered installing a charging port and charging the unit with refrigerant. I have done it on the AC unit on my Cutwater.
Ken
Sunny Daze
2018 C24

 

[AG3]

Have you considered installing a charging port and charging the unit with refrigerant. I have done it on the AC unit on my Cutwater.
Ken
Sunny Daze
2018 C24

Thanks for the suggestion!

 

[KKRCRACE]

If I may make another suggestion you might look or replace the AC capacitor. The reason that I installed a charging port in my AC was because it was pulling a code and thought it was low on refrigerant. It turned out to be the capacitor. Replaced the capacitor 5 years ago and it’s been working fine since then other than having to replace the sea water pump last year. If I remember correctly there are two capacitors in the electrical control panel but I could be mistaken but the bad one was burned on the top at the connections and easy to see.
Ken
Sunny Daze
C24 Chesapeake Bay Md.

 

[OverTime]

If I may make another suggestion you might look or replace the AC capacitor. The reason that I installed a charging port in my AC was because it was pulling a code and thought it was low on refrigerant. It turned out to be the capacitor. Replaced the capacitor 5 years ago and it’s been working fine since then other than having to replace the sea water pump last year. If I remember correctly there are two capacitors in the electrical control panel but I could be mistaken but the bad one was burned on the top at the connections and easy to see.
Ken
Sunny Daze
C24 Chesapeake Bay Md.

" If I remember correctly there are two capacitors in the electrical control panel." AC units generally have 2 capacitors, a start capacitor and a run capacitor. The start capacitor (higher rated) is usually the one to fail first. If an AC system needs a charge, it's because of a refrigerant leak. Look for oil stains around the copper fittings etc. this will give you a starting place to look for the leak.