Cruisair evaporator replacement fan motor

[Briankinley2004]

Does anyone know a part number or source for a blower motor that will fit a Cruisair EBO10C evaporator unit. The bearings are starting to squeal on startup and I know its going soon. It is located behind a wall panel and sofa in the salon. Accessibility is an issue and I want to have the right part on hand when I pull it out. I have found the entire assembly for $700 online but I only need the motor. I was hoping to be able to see the motor and get some numbers off it but its inside a sealed duct. Being its Louisiana and im staying on the boat a few more days I didnt want to risk trying to remove the coil unit to get the information. I also found two transformers behind the couch wall that look like as much fun to work on as the a/c. I guess they are to maintain the voltage levels or something.Getting the couch out and back in was a royal pain

 

[Reefgeorge]

When I faced this problem on my EBO16 evaporator all roads kept leading to "the motor is no longer available". It is reputed that the variable speed function of the SMXII control that I have needs an older shaded pole motor to operate correctly (there is more than one scheme to vary motor rpm) as apposed to the PSC versions mostly found today. I searched based on voltage, rpm, motor physical size and SP construction and found this:

https://www.amazon.com/gp/product/B000BUGFKI/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

I don't know if that unit still has the correct motor but it sure beats a whole new evaporator, even though you take the new unit apart and throw away the blower housing. In my case the extracted motor was an exact match and has been in operation since 2013.

I believe that I checked my smaller EBO evaporators (8 and 12 I think) and saw that the motors were all the same but I am not 100% sure.
George

 

[Briankinley2004]

Thanks George. I will give that a try. I have the SMX control but pretty much run fan at full speed all the time. I wish I could maintain my a/c and take the thing out. If it lasts until summer is over I may just pull out then but want to have something on hand in case it goes out before.

 

[Westfield 11]

I’m bringing back this thread since my fan motor just died. Was this a successful replacement? If so I’ll go ahead and order one up for delivery on Tuesday. If not does anyone have any suggestions? BTW, I am currently in Fort Lauderdale waiting for south winds to make our first crossing to the Bahamas, so if there is a local source I’ll get it there and save some time. I have heard talk of Grainger having a replacement as well, but don’t know if that is correct.

 

[Reefgeorge]

I last ordered that unit a few years ago and it was the correct motor at the time. I extracted the motor from the housing and it has been running great in my Cruisair evaporator since. I can not vouch for the motor type that would be found in that unit now.

George

 

[Westfield 11]

My fan motor appears to have been installed in 1987 when the boat was built! The compressor units in the generator room have all been replaced over the years but not the evaporators and their fans. I’ll pull the old one out and see what’s going on with it first.
Does anyone have experience with an electric motor rebuilder in Fort Lauderdale they can recommend? That could be an alternative to buying new.....

 

[racclarkson@gmail.com]

I could be wrong about this, but I don't think the Grainger available motor is correct. I've never heard of anyone rebuilding those motors, but who knows. I recently had one to go bad. My local marine HVAC guy has shelves of good motors he's taken out of boats on system changes. This was the second time I've gone to the well on this in five years. Paid $75 for the motor--another case against rebuilding. You should be able to go that route down there, or I can get you my guy's contact info.

 

[Rich60175]

I'm sure you can find a rebuilder out there but, I went to have a small modern rebuilt and was told it would be 250.00 . I would get the info from Robert and order one form his guy.

 

[Westfield 11]

Robert, can you send me your ac guys contact info? I found this replacement online: https://electricmotorwarehouse.com/dayton-model-1tdr8-blower-358-cfm-1550-rpm-230v-60-50hz-2c917/ but I’m not sure it will work. I have the old rotary knob rheostat type speed control instead of the SMX panel like in my salon.

 

[Westfield 11]

For some reason I cannot edit posts on my phone. I don’t need the contact after all: I decided to go with the replacement unit since I called them and learned that it will work on high power only. We only ever use the unit on high anyway.
I cleaned and lubed the old motor and it works again!! It barely moved when I checked it before removal and disassembly but the poking and prodding to take the squirrel cage blower off must have loosened it up. I also shot some WD-40 into it as well. Removing 30 years of dust and debris probably did not hurt either. I’m going to put it back in and keep the other assembly as a spare since this old one is compatible with the rheostat speed control.

 

[racclarkson@gmail.com]

For some reason I cannot edit posts on my phone. I don’t need the contact after all: I decided to go with the replacement unit since I called them and learned that it will work on high power only. We only ever use the unit on high anyway. I cleaned and lubed the old motor and it works again!! It barely moved when I checked it before removal and disassembly but the poking and prodding to take the squirrel cage blower off must have loosened it up. I also shot some WD-40 into it as well. Removing 30 years of dust and debris probably did not hurt either. I’m going to put it back in and keep the other assembly as a spare since this old one is compatible with the rheostat speed control.

Glad it worked out for you. Make sure it puts out enough air on heat. If not, you may find the unit short cycling due to high pressure trip.

 

[Westfield 11]

Glad it worked out for you. Make sure it puts out enough air on heat. If not, you may find the unit short cycling due to high pressure trip.

Good idea, there is a cold front moving through tomorrow IIRC and that will be a perfect time to find out. As an aside: thank goodness these kind of things always go back together easier and with less blood sweat and tears than they come apart! For marine air conditioning an air handler in a dinette seat is relatively low on the degree of difficulty scale.

 

[kingsley_oasis]

In the past I have used
www.hvacpartsupplier.com for replacement compressor for RX7, and a blower assembly for EBO7C

 

[Briankinley2004]

I never got around to replacing mine. I found that putting the fan on auto allows it to run all the time. Even when the compressor is off the fan will go to very low and stay spinning. I know its coming one day when it won't start but for now she is doing pretty good.

 

[JD5652]

I am resurrecting this thread due to a failed blower for my Guest Stateroom evaporator.

I have 5 AC units and all of them are split R22 systems. All compressors are located in the engine room and the evaporators are located in their respective spaces for cooling.

The blower unexpectedly stopped working about three weeks ago on my trip from Chesapeake, VA to Bradenton, FL. I finally got around to removing the unit and the blower wheel is hard to rotate. When I manually spin it, it doesn't even rotate 90 degrees. I'm assuming the motor bearing failed which eventually failed the motor. I have not yet tried energizing the motor. I do not see a way to just replace the motor on the unit. Therefore I'm in search of a new blower assembly. I cannot see the nameplate on the evaporator since it is mounted in the top of a closet about 1-inch from the ceiling.... of course that's where the nameplate is located. The evaporator is approximately 9" H x 9" W x 4" D. The compressor is a 7000 BTU unit.

I've searched everywhere for a Dometic replacement motor, but nothing ... and I mean nothing comes up. I'm OK with replacing entire blower, but am somewhat concerned if I can find the transition piece between the blower and the evaporator coil. The inlet to the blower (in the center of the unit) is 5" diameter. The outlet is 4.75" diameter where the outlet transition piece is mounted. The square flange on the blower outlet is about 5.5" x 5.5" with the mounting holes about 4.25" on center for each set of holes.

Original motor is Model 70637073, Type U6381, P/N 333650, 115 VAC, 50/60 Hz.

I've looked at non-OEM replacements and this appears to be the closest I've found....

Fasco 50755-D500 Centrifugal Blower with Sleeve Bearing, 1,600 rpm, 115V, 60Hz, 1 amps: Industrial Hvac Blowers: Amazon.com: Industrial & Scientific

Any words of wisdom from the brain-trust or lessons learned from those that have replaced these blowers??

Thanks!

 

[JD5652]

...

 

[Pascal]

These later cruisair blowers are junk. I ve had to get a few replaced on boats I run over the years, some as “new” as 4 years old, my AC guy got them from crui$air. They re likely off the shelf Dayton blowers

https://www.grainger.com/search/hva...ebParentSkuKey=WP5003204&sst=4&ts_optout=true

 

[Reefgeorge]

When one of my evaporator blower motors failed in 2013 I bought this:

https://www.amazon.com/gp/product/B000BUGFKI/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1


And extracted the motor for replacement. The unit has worked as new for 9 years while being on 24/7.


George

 

[Reefgeorge]

My motor is 230v however and I see that yours is 115v. My unit uses the digital control panel with electronic variable fan speed and so I felt that finding a shaded pole motor was important and I did not use the common PSC variety.

George

 

[Briankinley2004]

Some how mine started working again. I cleaned the blower wheel best I could and may have shot some oil in there. Since you have the motor and housing out the hard part should be done. Let us know your source and model number if you find a replacement. We are dealing with variable speed on some Trane units at work and were told a place in Germany makes theirs and has been shut down for covid. Hopefully these smaller motors aren't in that mode.