Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 

Go Back   Keystone RV Forums > Keystone Fleet | Keystone RV Models > Travel Trailers
Click Here to Login

Reply
 
Thread Tools Display Modes
 
Old 05-19-2020, 06:54 AM   #1
cmaeran
Junior Member
 
Join Date: Nov 2018
Location: Englewood
Posts: 6
Fan running at Power Center

When we plugged in our travel trailer this spring, we noticed a noise that sounds like a fan and traced it to the power center control box. Cannot determine why it is running. Any ideas?

2018 Keystone Cougar 27RES
2019 RAM 2500 Big Horn
John and Connie Maeran
Colorful Colorado
cmaeran is offline   Reply With Quote
Old 05-19-2020, 07:03 AM   #2
travelin texans
Senior Member
 
travelin texans's Avatar
 
Join Date: Nov 2017
Location: Picacho, Az
Posts: 6,809
The converter, which converts shore power to battery power & charges your batteries, has a cooling fan that runs when the converter is under a load.
Unless you disconnected your batteries during storage they are likely very low, once you plugged the RV into shore power the converter immediately went to working hard to charge them back up. Be sure to check the water levels (should be done at least a couple times a year) in the batteries, if when removing the caps you can see the plates add distilled water to cover them.
__________________
Full-timed 10+ years
Sold '13 Redwood FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
travelin texans is offline   Reply With Quote
Old 05-19-2020, 07:45 AM   #3
flybouy
Site Team
 
Join Date: Oct 2011
Location: Joppa, MD
Posts: 11,714
Like Danny said, most likely the battery. If you let it set uncharged, in the cold the battery may be damaged beyond just filling with distilled water. I'd suggest removing the battery and have it load tested by a competent person. If the battery has a shorted cell it can damage the converter.
__________________
Marshall
2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
flybouy is offline   Reply With Quote
Old 05-19-2020, 07:54 AM   #4
cmaeran
Junior Member
 
Join Date: Nov 2018
Location: Englewood
Posts: 6
Thanks for your help. We had the trailer connected to electricity most of the winter, only had it off for about 30 days. The service panel indicates the battery is fully charged, the water levels were good, when we checked and the slide operated fine. Fan is still running. Hubby is going to put the battery on a trickle charge to see if it needs charging.
cmaeran is offline   Reply With Quote
Old 05-19-2020, 08:20 AM   #5
travelin texans
Senior Member
 
travelin texans's Avatar
 
Join Date: Nov 2017
Location: Picacho, Az
Posts: 6,809
Quote:
Originally Posted by cmaeran View Post
Thanks for your help. We had the trailer connected to electricity most of the winter, only had it off for about 30 days. The service panel indicates the battery is fully charged, the water levels were good, when we checked and the slide operated fine. Fan is still running. Hubby is going to put the battery on a trickle charge to see if it needs charging.
The converter, if working properly, will charge your more efficiently than a trickle charger. Unplugged for 30 days with only the factory disconnect off, if it was, your batteries were most likely very low with the parasitic draws from CO/LP detector & the other items that do not get disconnected by the factory disconnect.
If you are running several lights, the fridge, the water heater or any other 12 volt item the fan will run til the converter cools down.
If it seems to be very noisy it's possible it's full of dust or if the previous owner had pets could be hair.
__________________
Full-timed 10+ years
Sold '13 Redwood FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
travelin texans is offline   Reply With Quote
Old 05-19-2020, 08:24 AM   #6
MarkEHansen
Senior Member
 
MarkEHansen's Avatar
 
Join Date: Oct 2018
Location: Sacramento
Posts: 1,005
If you're plugged into shore power, the battery level indicator is going to show you the voltage being applied to the battery by the converter, not the charge on the battery.

The converter (and batteries) also provide power to all the 12V DC items in the trailer. This includes the lights, the furnace, the water pump, etc. If you have a large DC load, the converter will have to work harder and the fan will come on.
__________________
2022 Cedar Creek Champagne 38EL - "Big Bertha"
2019 GMC Sierra 3500 Denali HD 6.6L Duramax TD, CC, 4WD, DRW - "Mr. Beefy"
MarkEHansen is offline   Reply With Quote
Old 05-19-2020, 08:31 AM   #7
sourdough
Site Team
 
Join Date: Feb 2014
Location: W. Texas
Posts: 17,601
What all do you have on when the converter fan is running? Have the batteries ever been depleted? That fan motor typically indicates the converter is trying to supply power to "something" whether it's trying to replenish depleted batteries or supply power to something else and the batteries.

Our converter used to run a lot from just turning on a lot of lights when opening up the trailer. They were all incandescent at that time. Replaced them all with LEDs and that stopped that. With an 18 I don't know what kind of lights it came with.
__________________
Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
sourdough is offline   Reply With Quote
Old 05-19-2020, 08:46 AM   #8
flybouy
Site Team
 
Join Date: Oct 2011
Location: Joppa, MD
Posts: 11,714
Yet the converter charge the battery. It's far more powerful and sophisticated than an inexpensive trickle charger. After it's had had a chance to charge (may take 24 hrs), then keep an eye or ear out. If there is nothing on inside (i.e. lights, fans, fridge) than the fan should shut off. I'd still recommend having the battery checked. It only takes one deep discharge to greatly reduce the capacity and the life of a flooded lead acid battery.
__________________
Marshall
2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
flybouy is offline   Reply With Quote
Old 05-19-2020, 09:48 AM   #9
cmaeran
Junior Member
 
Join Date: Nov 2018
Location: Englewood
Posts: 6
Quote:
Originally Posted by flybouy View Post
Yet the converter charge the battery. It's far more powerful and sophisticated than an inexpensive trickle charger. After it's had had a chance to charge (may take 24 hrs), then keep an eye or ear out. If there is nothing on inside (i.e. lights, fans, fridge) than the fan should shut off. I'd still recommend having the battery checked. It only takes one deep discharge to greatly reduce the capacity and the life of a flooded lead acid battery.


got it! Good info - thanks. We'll check out the battery capacity.
cmaeran is offline   Reply With Quote
Old 05-19-2020, 09:50 AM   #10
cmaeran
Junior Member
 
Join Date: Nov 2018
Location: Englewood
Posts: 6
thanks for the info! We turned off everything including the fridge and the fan kept running. Checking out the battery charge.
cmaeran is offline   Reply With Quote
Old 05-19-2020, 09:52 AM   #11
cmaeran
Junior Member
 
Join Date: Nov 2018
Location: Englewood
Posts: 6
Quote:
Originally Posted by MarkEHansen View Post
If you're plugged into shore power, the battery level indicator is going to show you the voltage being applied to the battery by the converter, not the charge on the battery.

The converter (and batteries) also provide power to all the 12V DC items in the trailer. This includes the lights, the furnace, the water pump, etc. If you have a large DC load, the converter will have to work harder and the fan will come on.

Good to know! thanks for weighing in. All the responses are very helpful in our learning curve. This is only our 2nd season.
cmaeran is offline   Reply With Quote
Old 05-19-2020, 08:03 PM   #12
Steveo57
Senior Member
 
Join Date: Dec 2017
Location: Lisbon
Posts: 551
If it's a WFCO converter the fan runs based on load. See the attached from WFCO.
Attached Thumbnails
Click image for larger version

Name:	Screenshot_20200520-000037.jpg
Views:	216
Size:	156.7 KB
ID:	27441  
__________________
2018 Keystone Cougar 22RBS
2020 Ford F-350 XLT SC SRW 6.7l Powerstroke.
Steveo57 is offline   Reply With Quote
Old 05-31-2020, 10:23 AM   #13
ObiRich
Member
 
Join Date: Aug 2019
Location: Roy
Posts: 51
Quote:
Originally Posted by cmaeran View Post
Thanks for your help. We had the trailer connected to electricity most of the winter, only had it off for about 30 days. The service panel indicates the battery is fully charged, the water levels were good, when we checked and the slide operated fine. Fan is still running. Hubby is going to put the battery on a trickle charge to see if it needs charging.
Whenever you're plugged into shore power, your batteries are going to read full.
ObiRich is offline   Reply With Quote
Old 05-31-2020, 12:50 PM   #14
LHaven
Senior Member
 
LHaven's Avatar
 
Join Date: Feb 2019
Location: Wickenburg
Posts: 3,271
Quote:
Originally Posted by sourdough View Post
Our converter used to run a lot from just turning on a lot of lights when opening up the trailer. They were all incandescent at that time. Replaced them all with LEDs and that stopped that. With an 18 I don't know what kind of lights it came with.
We notice frequently while camping that we can turn on a single LED light (in addition to anything else DC that may be going on in the background, like the fridge board, the thermostat, etc.) and that fan will start running; turn the light off again, and the fan stops. We just accept that the fan is doing what it's supposed to.
__________________
2019 Cougar 26RBSWE
2019 Ford F-250
LHaven is offline   Reply With Quote
Old 05-31-2020, 02:13 PM   #15
sourdough
Site Team
 
Join Date: Feb 2014
Location: W. Texas
Posts: 17,601
Quote:
Originally Posted by LHaven View Post
We notice frequently while camping that we can turn on a single LED light (in addition to anything else DC that may be going on in the background, like the fridge board, the thermostat, etc.) and that fan will start running; turn the light off again, and the fan stops. We just accept that the fan is doing what it's supposed to.

I would think one LED fixture would not kick in the converter on its own. When I replaced the incandescents in my old trailer (38 if I recall) it made a huge difference. Prior to changeout if I turned on one light the converter kicked in. After changeout I could turn on all of them in the living room and bedroom and it never kicked on. Of course that was on fully charged batteries and nothing else running but the "background" stuff.
__________________
Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
sourdough is offline   Reply With Quote
Old 05-31-2020, 04:28 PM   #16
Frank G
Senior Member
 
Frank G's Avatar
 
Join Date: Feb 2017
Location: Dade City
Posts: 1,039
For what it is worth the fan in the converter has been running for 3 years straight. The battery electrolyte level is OK and it provided the energy for a complete level operation 30 days ago. At this time nothing is on with 60 deg. F temps outside. About time I tear this one apart and give it a good cleaning.
__________________
2021 Surveyor Legend 19rble
2017 Laredo 325RL
Travelers Rest Resort
www.travelersrestresort.com
Frank G is offline   Reply With Quote
Old 06-06-2020, 04:55 PM   #17
LHaven
Senior Member
 
LHaven's Avatar
 
Join Date: Feb 2019
Location: Wickenburg
Posts: 3,271
Quote:
Originally Posted by sourdough View Post
I would think one LED fixture would not kick in the converter on its own.
It probably didn't. It was just the proverbial straw, on top of whatever else was going on that wasn't obvious (like the turned-off radio, the charging phone, etc.)

I'm used to computer fans, where a slight increase in load means a slight increase in the fan speed. Not so with this converter -- the fan is either full on or full off.
__________________
2019 Cougar 26RBSWE
2019 Ford F-250
LHaven is offline   Reply With Quote
Old 06-06-2020, 06:40 PM   #18
JRTJH
Site Team
 
JRTJH's Avatar
 
Join Date: Mar 2011
Location: Gaylord
Posts: 26,846
From the WFCO website: https://wfcoelectronics.com/faq/#tab-5edc3de847991

Should my fan run all the time?
No. The fan is controlled by the load. The fan will start running at a low speed when you have approx. 3.0 to 6.0 DC Amp draw. It will increase in speed as you add more load until you have approx 14.0 to 15.0 Amps draw. At this point, the fan is at its maximum speed and will stay there even if you add more load, Should amperage drop below 3.0 to 6.0 DC amps, the fan will shut off.
__________________
John



2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
JRTJH is offline   Reply With Quote
Old 06-06-2020, 06:45 PM   #19
LHaven
Senior Member
 
LHaven's Avatar
 
Join Date: Feb 2019
Location: Wickenburg
Posts: 3,271
Interesting. So far, as far as I have been able to tell, my converter has two settings: annoying noise, and no annoying noise. I haven't heard any gradations in fan speed other than "on." Or perhaps I just don't have enough equipment to demand a DC load over the first step. I'll have to pay more attention to the annoyance on our next trip and see if I can detect different levels.
__________________
2019 Cougar 26RBSWE
2019 Ford F-250
LHaven is offline   Reply With Quote
Old 06-06-2020, 07:15 PM   #20
JRTJH
Site Team
 
JRTJH's Avatar
 
Join Date: Mar 2011
Location: Gaylord
Posts: 26,846
If you have a converter that's NOT a WFCO, it may not function like the above. If it's a WFCO, it's a variable speed fan. If your fan is "annoyingly loud" you might want to dig into the converter and clean the fan. If you've got pets (or if Keystone didn't clean out the sawdust) you may have some debris on the fan blades causing them to "wobble" which makes them far too loud to ignore.....
__________________
John



2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
JRTJH is offline   Reply With Quote
Reply

Tags
power

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
Forum Jump

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by the Keystone RV Company or any of its affiliates in any way. Keystone RV® is a registered trademark of the Keystone RV Company.


All times are GMT -8. The time now is 11:36 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.