|
03-26-2015, 06:43 PM
|
#1
|
Member
Join Date: Jan 2015
Location: Sparland, Illinois
Posts: 53
|
Dometic Thermostat & loud Water pump
Got a New Cougar 327 res the thermostat is 12 degrees off the real temp. Anyone had this problem. Can they be adjusted, or do i need a new thermostat. The water pump vibrates the pipes bad.
|
|
|
03-26-2015, 07:05 PM
|
#2
|
Site Team
Join Date: Mar 2009
Location: Fraser Valley BC Canada
Posts: 7,015
|
Quote:
Originally Posted by orvlin
The water pump vibrates the pipes bad.
|
The noise and vibration from your water pump may be reduced by:
1) removing the pump from the floor and placing some type of vibration dampening material (rubber, cork, etc.) between the pump and the floor.
Mount the pump on a piece of plywood. Fasten the dampening material to the base of the plywood and screw the plywood into the floor.
2) checking the water lines to make sure they do not vibrate against any partition or wall. Sometimes, the pipes rest on a wooden cutout and the whole partition vibrates. Put some foam pipe wrap around the line where it passes through a cutout.
3) replace the short plastic line with braided stainless steel.
4) if none of this works, you might want to consider installing a small accumulator tank downstream from the pump. This tank reduces the amount of on/off cycling of the pump and cuts down on the noise.
Hope this helps.
__________________
2008 Cougar 5th Wheel 27RKS
2005 2500 GMC Duramax
|
|
|
03-26-2015, 07:24 PM
|
#3
|
Senior Member
Join Date: Feb 2013
Location: MA
Posts: 3,153
|
Knowing the temp is off by 12 degrees just make the adjustment and set it 12 degrees higher or lower. Don't really know if mine is correct or not, we set it until we are comfortable. My guess it is off somewhat. You do get a large range when the heat is running it gets cold when it is time to come on and real hot by the time it shuts off.
__________________
2013 Premier 31BHPR
2014 F350 6.2L
Soon to be just DW and I
|
|
|
03-26-2015, 07:35 PM
|
#4
|
Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,356
|
How did you determine the thermostat is 12 degrees off?
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
|
|
|
03-27-2015, 06:05 AM
|
#5
|
Member
Join Date: Jan 2015
Location: Sparland, Illinois
Posts: 53
|
dometic thermostat
two thermometers in the trailer say it's 50 degrees thermostat is set at 62 and hasn't turned on tell you dropping another degree.
|
|
|
03-27-2015, 06:47 AM
|
#6
|
Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,356
|
Quote:
Originally Posted by orvlin
two thermometers in the trailer say it's 50 degrees thermostat is set at 62 and hasn't turned on tell you dropping another degree.
|
Interesting. If it's a digital thermostat, then it may need replacing.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
|
|
|
03-27-2015, 07:22 AM
|
#7
|
Site Team | Emeritus
Join Date: Jan 2014
Location: Western PA
Posts: 2,732
|
I assume when you are comparing these temperatures from measuring devices that are next to each other. My thermostat is at the top of the stairs which I would expect to read higher than a temperature from a device say in the garage or living area. Although 12 degrees is a lot
__________________
2013 RAPTOR 300MP w/Rear Patio Deck NO Folding Side Ladder
2013 Silverado 3500HD LTZ CC LB 4X4 DRW
Duramax 6.6L Turbo Diesel; Allison Trans
Reese 20K; Carlisle Radial Trail RH/HD; TPMS (12 Tires)
Veteran
PSU (GO LIONS)
|
|
|
03-30-2015, 03:58 AM
|
#8
|
Senior Member
Join Date: Oct 2012
Location: Vermont
Posts: 367
|
Quote:
Originally Posted by orvlin
two thermometers in the trailer say it's 50 degrees thermostat is set at 62 and hasn't turned on tell you dropping another degree.
|
I get about a 6 degree variance as the thermostat is part way up the stairs and my thermometer is on the kitchen counter at the back of the RV.
As for water pumps, I simply replaced the noisy Flojet with a quiet Shurflo Revolution. Watch for a sale, then order it.
Meanwhile, there is this:
__________________
2015 Ford F-350 XLT Ruby Red 6.7L Powerstroke, 4x4, Short Bed, Andersen Ultimate Hitch
Cougar High Country 299RKS, Mor/Ryde pin box, 200w solar
|
|
|
03-30-2015, 06:17 AM
|
#9
|
Senior Member
Join Date: May 2010
Location: Rochester, NY
Posts: 1,605
|
X2 what everyone said about noisy water pump.
As far as thermostat, I found it best to replace the OEM one with a household digital thermostat found on the shelf at HD/Lowes. Cost is around $30 for a programmable one. It needs to be the battery powered type and installing is easy.
|
|
|
03-30-2015, 08:17 PM
|
#10
|
Senior Member
Join Date: Apr 2013
Location: Green Valley, AZ
Posts: 782
|
Quote:
Originally Posted by Festus2
The noise and vibration from your water pump may be reduced by:
1) removing the pump from the floor and placing some type of vibration dampening material (rubber, cork, etc.) between the pump and the floor.
Mount the pump on a piece of plywood. Fasten the dampening material to the base of the plywood and screw the plywood into the floor.
2) checking the water lines to make sure they do not vibrate against any partition or wall. Sometimes, the pipes rest on a wooden cutout and the whole partition vibrates. Put some foam pipe wrap around the line where it passes through a cutout.
3) replace the short plastic line with braided stainless steel.
4) if none of this works, you might want to consider installing a small accumulator tank downstream from the pump. This tank reduces the amount of on/off cycling of the pump and cuts down on the noise.
Hope this helps.
|
This is all great advice. That is what you need to do. After more rigs than I can remember I just let it be noisy and ignore it. But the steps above will certainly help.
As for thermostat, the stock one is worthless. Replace it with a true digital thermostat from Lowes, Home Depot, etc. It will keep the temps but better.
__________________
Earl
2007 33.5' Arctic Fox Fifth Wheel used for full-timing for several years--now sold
2011 Hideout 23RKSWE that we now use for poking around local parks
2007 Chevy 3/4 ton diesel with Prodigy Brake Control
|
|
|
08-09-2022, 10:47 AM
|
#11
|
Member
Join Date: Feb 2021
Location: West Richland
Posts: 46
|
Festus2-Thanks for the great tips on water pump noise mitigation. Even though you posted this 7 years ago it totally solved our noise issue while we were out on the road. Just a little pot holder stuffed under the sink where the hot and cold tubes were rattling against the shelving...presto! Foam insulation when we get home. THIS IS THE BEST FORUM EVER! So much great advice. Thanks a million!
__________________
Phil
2018 Cougar 279RKSWE
2015 Ram 2500
Andersen Ultimate w/ B&W Turnover ball
|
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Threads |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|