AC fan issue

G

Georgia SeaDawg

New Member
Apr 30, 2009
613
Savannah, GA.
Boat Info
270 Dauntless
Engines
Twin 225 verado's
On my 360, my fan is always on, even when the AC compressor cuts off. I would think this would function like your home HVAC system, when the temp hits the set temp, the fan and compressor cuts off. Is this normal? The unit is on auto, and everything else functions as expected. I keep the temp on 72. Any ideas?
 
That is the normal default operation. It can be set to turn off with the compressor. I will look for the manual and post if I can. The only downside is that it can cause issues with the thermostat working properly since it is mounted right on the air intake. I turned mine off because I cant stand listening to it run constantly. It has worked OK. I just set the delay on my control and calibrated the thermostat.
 
I leave mine running to keep air moving in this coastal climate.
 
How many just use the Humidity setting? I understand that when the sensor senses humidity, it kicks the compressor and fan on and it pulls the humidity out. Or should I just let her run all the time? Just worried about burning up the fan. And if it does, has anyone replaced theirs?
 
Georgia SeaDawg said:
How many just use the Humidity setting? I understand that when the sensor senses humidity, it kicks the compressor and fan on and it pulls the humidity out. Or should I just let her run all the time? Just worried about burning up the fan. And if it does, has anyone replaced theirs?
Click to expand...

Mine runs all the time, but mostly because it's the default. My boat is on a lift, so the AC is only on when I'm at a marina on shore power, or to cool/dehumidify the boat when on anchor running the generator. I don't sleep with the generator on. I wasn't a ware of the humidity setting, so it looks like I'll be doing some reading this weekend!
 
Humidity is a timed interval operation. There is no humidistat involved. I used to keep the fan on low and turn the temp up to 80 or so. That was a bit tough on laboring the fridge in extreme temps. My electric bill went down, but I still had to contend with the humidity and getting the boat to a reasonable temp when first boarding. My compromise is fan on low, temp set to 78 and a few dollars more for electricity each month.
 
tdschafer said:
I think there are 3 buttons that you have to press simultaneously, heat/cool/fan


Sent from my iPhone using Tapatalk
Todd
Click to expand...

Also you can program the humidity cycle for the number of minutes it runs and the time between cycles. I think the default is to cycle the compressor/fan for 30 minutes every 8 hours.

UGaDawg, I use the humidity mode in spring and fall. During these summer stretches I keep the a/c on all the time with the fan running continuous. I've settled in at 78 as the ideal setting for my boat.
 
I recommend not changing the fan behavior. I changed mine to shut off when the compressor shut off; that lasted about two days and I set it back.

The problem is that on most Sea Rays (maybe all until owners mess with it), the thermostat pickup is in the cabin air return path, not on the wall of the cabin. That means if the fan is running the pickup will be roughly the temperature of the cabin. If the fan is off, it will be at the temp of whatever corner of the hull the return duct is in, which is definitely not the temperature of the cabin.

The best option is to put the fan on "automatic" mode rather than a fixed setting. It will be on a very low speed once the cabin reaches the temp you want, and will speed up when the compressor runs.

I set the AC to dehumidify mode when I leave. In this mode the fan will shut off until the compressor runs. That's the best way to avoid having the fan run 24x7 even when you aren't there.

Rich
 
Last edited:
You must log in or register to reply here.

Forum statistics

Threads
113,187
Messages
1,428,208
Members
61,098
Latest member
Klawson83
Back
Top