|
10-14-2014, 09:54 AM
|
#1
|
Member
Newmar Owners Club
Join Date: Jan 2012
Location: Valley City, OH
Posts: 64
|
Suburban water heater; electric light stays on
I have a 1999 DSDP with a Suburban SW10DE (gas/electric with ignitor) water heater. The indicator light for the electric portion of the water heater stays on no matter if the switch is on or off.
In the control panel above the passenger seat, there are two switches for the water heater. A 12v switch for operation on propane and what looks like a 120v wall switch for operation on electric. Both have red lights. The switches have worked fine for the 3 years I've owned the coach and I'm familiar with how they're supposed to function.
The water heater functioned normally when it was last used. It was winterized in early spring and has sat unused through the summer unplugged and with the batteries removed for replacement. I installed new batteries last week and everything appeared to be in order. The electric water heater light wasn't on when I first plugged it in and verified that everything was working.
After being plugged in to shore power for 3 days, I noticed that the red light for the electric hot water heater was on. I assumed I must have flipped it on by accident and rushed to switch it off. The light stayed on. I immediately flipped it back the other way. Same thing. I flipped off the circuit breaker for the water heater and the light stayed on and is still on now.
I haven't put water in the tank yet nor done any voltage testing. I'm hoping someone can tell me that this is a designed fault indicator and how to fix it. I called Suburban, but they said the switch was added on by Newmar and they can't diagnose it. Any help would be appreciated. Thanks!
__________________
Valley City, Ohio
1999 Newmar DSDP 3862.
|
|
|
|
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
10-14-2014, 10:35 AM
|
#2
|
Registered User
Join Date: Mar 2010
Posts: 8,777
|
Quote:
Originally Posted by driedl
I have a 1999 DSDP with a Suburban SW10DE (gas/electric with ignitor) water heater. The indicator light for the electric portion of the water heater stays on no matter if the switch is on or off.
Any help would be appreciated. Thanks!
|
driedl
See the "Trouble Shooting Guide", (on pages 17-20), of this pdf:
http://dutchmen.com/image/data/docum...ice_Manual.pdf
Good luck
Mel
'96 Safari
|
|
|
10-14-2014, 11:02 AM
|
#3
|
Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,269
|
I'm scratching my head to figure why the light would be on , with the C/B for the water heater off.
If the heater element was powered with no water in the tank, it will be fried.
First thing would be to disconnect the coach from shore power, and replace the element. Inspect the wiring for damage from overheating.
Test the 110v limit switch for continuity, it may have been damaged too.
With every thing inspected, fill the tank and plug the coach back into power and test the switch/light operation.
If the light operation is back to normal, on/off when it should, your ok.
If not you may need a new switch.
Note: I had a problem with the tank heat pad switch/light glowing ( very dim) when off, had to shut off the C/B to put the light out. I pulled the switch and cleaned the wiring and tightened the connecting wires, 2 years ago, no issues since.
EDIT: When checking the suppliers web site, for a replacement switch, I couldn't find any info on testing.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
|
|
|
10-14-2014, 12:56 PM
|
#4
|
Senior Member
Newmar Owners Club
Join Date: Jul 2006
Location: Wellington, Florida
Posts: 13,599
|
Hi driedl,
Try what Skip426 said. Like him I am baffled with the CB off the light stays on. Newmar wires this from the CB to the light to the WH. All the light does is tell the owner there is power from the CB. You could have a bad CB, but it is a long shot. If you can, take some meter readings (at the CB and light switch) to begin to narrow the possibilities.
__________________
Gary
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
The Avatar Is Many Times Around The USA
Nobody Knows Your Coach Like Somebody Who Owns One Just Like Yours
|
|
|
10-14-2014, 05:33 PM
|
#5
|
Moderator Emeritus
Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,785
|
May want to check the switch on face of the WH wiring could be corrode and shorting out.
|
|
|
10-15-2014, 07:17 AM
|
#6
|
Member
Newmar Owners Club
Join Date: Jan 2012
Location: Valley City, OH
Posts: 64
|
Thanks!
Thanks for the suggestions. I've ordered a new electric element and will troubleshoot on Saturday and let you know what I come up with. I did find a post on another forum saying that the wiring for the switch is 12v so that may explain why the CB didn't kill the light.
__________________
Valley City, Ohio
1999 Newmar DSDP 3862.
|
|
|
10-15-2014, 09:50 AM
|
#7
|
Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,269
|
Quote:
Originally Posted by driedl
Thanks for the suggestions. I've ordered a new electric element and will troubleshoot on Saturday and let you know what I come up with. I did find a post on another forum saying that the wiring for the switch is 12v so that may explain why the CB didn't kill the light.
|
I think you will find that your switch/light is 110, and that the change to 12v switches, with relays, to control 110 power, was a change up for newer years, of Newmar, with a built in power management system.
I did have a second thought , and this thought comes with several " IFs ".
If the last time the switch/light worked correctly, your coach was plugged in at a different outlet, the problem your having with the light staying on; even with the C/B off , could be an indication of reverse polarity at the current power source. If your coach doesn't have a surge protector with reverse polarity protection & if you have never plugged in at this outlet before & if there is a chance you missed the light being on when you first plugged in and only noticed it on day 3.
I mentioned in my other post a glowing light on my heat pad control, as well as corrosion ( from proximity to vanity tap set) the load side wiring was reversed, something I corrected when I re-installed the switch.
As I said , several ifs, just something else to consider.
Question. Are you plugged into 50 amp service, or adapting down to a lower amp outlet?
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
|
|
|
10-15-2014, 03:03 PM
|
#8
|
Senior Member
Newmar Owners Club
Join Date: Jul 2006
Location: Wellington, Florida
Posts: 13,599
|
Hi driedl,
I'm pretty sure, on your coach, the switch and light are 120 VAC and powered directly from the C/B. There is nothing between the C/B and Thanks for offering to post here, what you find. the switch/light.
__________________
Gary
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
The Avatar Is Many Times Around The USA
Nobody Knows Your Coach Like Somebody Who Owns One Just Like Yours
|
|
|
10-15-2014, 05:17 PM
|
#9
|
Moderator Emeritus
Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,785
|
No way of checking mine because of winterized, but the led light I believe is always on when your using your electric element, to indicate that its in use.
And as I said before the small switch on face of WH has to be on for element to work also.
|
|
|
10-17-2014, 05:04 AM
|
#10
|
Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: Oct 2013
Location: western NY
Posts: 186
|
Quote:
Originally Posted by Skip426
I think you will find that your switch/light is 110, and that the change to 12v switches, with relays, to control 110 power, was a change up for newer years, of Newmar, with a built in power management system.
|
Just a thought, could it possible that the relay fried in the "closed" position?
__________________
99 DSDP 3865 Cat 300, 2018 jeep jl toad
|
|
|
10-19-2014, 07:34 PM
|
#11
|
Member
Newmar Owners Club
Join Date: Jan 2012
Location: Valley City, OH
Posts: 64
|
Solved!
Thanks to everyone for your suggestions. Before I was able to fix the water heater, I had a really fun experience on Thursday night. I was reattaching the stairs under the motorhome, laying in a puddle of water, when I dropped the wrench . . . twice. I also noticed a funny tingly sensation in my hand while I tightened the bolt. It took me longer than it probably should have to realize that I was being electrocuted. When I unplugged the motorhome, the tingly feeling went away - and just when I was starting to enjoy it! I also found that, if I plugged the motorhome into a GFCI outlet, it would trip immediately.
Anyway, I got the new electric element for the water heater and went to install it today. While doing so, I found that one of the wires to the element had rubbed through its insulation so the bare wire was touching the metal water heater. I fixed the wire and installed the new element. The 120v switch now works like it's supposed to, I have hot water, and a GFCI outlet no longer trips when I plug into it. Happy days!
Thanks again.
__________________
Valley City, Ohio
1999 Newmar DSDP 3862.
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Thread Tools |
Search this Thread |
|
|
Display Modes |
Linear Mode
|
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 Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|