Reply
 
Thread Tools Display Modes
Old 01-24-2019, 09:24 AM   #1
Senior Member
 
Join Date: Apr 2015
Posts: 121
AC problem

My auto fan hi low system keeps changing speeds on its own. Anyone changed control board and thermostat to fixx this? My current board is 3313199.000 and thermostat is 3313195.012. This is a terrible system made by Dometic. New updated system from Dometic is available but I am not sure it will help. Kit# 3316230.014. Thanks for your help in advance.
Steve
__________________

sk734 is offline   Reply With Quote
Old 01-24-2019, 09:33 AM   #2
Senior Member
 
bubbles's Avatar
 
Join Date: Dec 2012
Posts: 4,154
Have you tried re-initializing it?

System Initialization A system initialization will need to be performed by the installer after the system is installed. • Make sure the Single Zone LCD thermostat is in the Off condition. See page 4, “Quick Reference To Control Buttons”. • Press the “+” button and, while holding it, also press and hold the On/Off Mode button for three seconds. LCD will show ― ― . Press the On/Off Mode button again to turn system off. This completes the initialization
__________________

bubbles is offline   Reply With Quote
Old 01-24-2019, 09:39 AM   #3
Senior Member
 
Join Date: Apr 2015
Posts: 121
Yes I have reinitialized it several times with no luck.
sk734 is offline   Reply With Quote
Old 01-24-2019, 09:46 AM   #4
Senior Member
 
bubbles's Avatar
 
Join Date: Dec 2012
Posts: 4,154
Is the fan indicated speed changing on the thermostat or just the fan changing with the thermostat set to auto. If the fan is changing to a lower speed and then to a higher speed but the fan indicated setting still says AUTO this would be normal operation for the A/C setting. The fan speed will automatically switch to low when the set temp is within about 4 degrees. It will automatically switch to high again when beyond 4 degrees of setting.
bubbles is offline   Reply With Quote
Old 01-24-2019, 09:57 AM   #5
Senior Member
 
bubbles's Avatar
 
Join Date: Dec 2012
Posts: 4,154
By the way you can set the fan speed to HI or LO instead of AUTO and the fan will not switch from the fan speed setting.
bubbles is offline   Reply With Quote
Old 01-24-2019, 09:58 AM   #6
Senior Member
 
Join Date: Apr 2015
Posts: 121
I have read the thermostat manual and yes you are right about speed changes when set to auto however mine has changed speed a number of times within 1 minute. It has to be hard on the motor.
sk734 is offline   Reply With Quote
Old 01-24-2019, 10:00 AM   #7
Senior Member
 
Join Date: Apr 2015
Posts: 121
Yes I can change to low or high but would like to use auto so fan shuts down when not needed. Thanks for your post.
sk734 is offline   Reply With Quote
Old 01-24-2019, 10:10 AM   #8
Senior Member
 
Join Date: Apr 2015
Posts: 121
Thanks for post
sk734 is offline   Reply With Quote
Old 01-24-2019, 10:26 AM   #9
Citrus County, Fl.
 
GL1800Rider's Avatar
 
Join Date: Apr 2014
Location: Hernando, Fl
Posts: 1,972
Mine will change speeds frequently as it is getting warmer outside. I don't know if its hard on the system as I imagine it is designed to work that way. However, it gets annoying so I just switch to hi fan until the sun goes down the switch back to auto so you can hear the televison
__________________
2016 Forester 3011DS
2017 Toyota Corolla SE toad
PREVIOUS: 2015 Flagstaff 832IKBS
99 Terry 31G
GL1800Rider is offline   Reply With Quote
Old 01-24-2019, 10:41 AM   #10
Head Rambler
 
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 6,791
Quote:
Originally Posted by sk734 View Post
My auto fan hi low system keeps changing speeds on its own. Anyone changed control board and thermostat to fixx this? My current board is 3313199.000 and thermostat is 3313195.012. This is a terrible system made by Dometic. New updated system from Dometic is available but I am not sure it will help. Kit# 3316230.014. Thanks for your help in advance.
Steve
When you set the fan speed to Auto, the fan will automatically switch speeds depending on how far from setpoint the temp is. (I.E. When running the A/C it runs on high until it starts getting close to setpoint and then it stops for a couple seconds and switches the fan to low. As it drifts away from setpoint it stops the fan again and switches it to high). As aggravating as that may seem, that's the way it's designed.
__________________

__________________
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
Bama Rambler is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 10:46 PM.


×