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

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Monaco Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
View Poll Results: Repair or Replace
Repair 0 0%
Replace 1 100.00%
Voters: 1. You may not vote on this poll

  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 03-23-2019, 02:35 PM   #1
Junior Member
Join Date: Mar 2019
Posts: 2
1995 Monaco Dynasty & 2002 Suburban SW10DE water heater

[ATTACH]Click image for larger version

Name:	WIN_20190323_13_12_43_Pro.jpg
Views:	333
Size:	216.1 KB
ID:	239143[/ATTACH]1.Trying to determine if it is better to replace or repair our water heater.

a. Coach: 1995 Monaco Dynasty, 40 ft.
b. Water Heater: Suburban SW10DE
Date of Installation 2002 @ New Orleans RV Show

2. Bought our 1995 Monaco Dynasty in September 2017.

a. Propane ignition stopped working soon after we bought coach, so we've been using the electrical connection. FYI, the propane was close to empty, so we filled up the propane and the pilot light still would not come on.

3. Water heater functioned as designed on electric connection until 2/2019

a. Removed exterior coach cover to inspect water heater.
b. Visual inspection:
i. Gasket and cover to thermostat melted together.
ii. Burned wires to thermostat, see photos.
c. Replaced thermostat, unit did not power on.
i. Confirmed that the power was on at both the unit as well as at the interior switch.
ii. Reset button pressed on the thermostat.
iii. Unit not powering up.

IV. Replaced the heating element, unit did not power on.

I have carefully cleaned the unit and cannot see anything obvious that is preventing it from coming back on.

Our next step is to replace our propane regulator.
We tried to use our propane burners a couple of months ago, but they wouldn’t ignite, and we cannot get our generator (which runs on LPG & Diesel) to run. I have learned from reading other RV posts that if you don’t have enough fuel in the diesel tank that as a safety measure the diesel line won’t power the generator and if the propane regulator has failed then the LPG line wouldn’t engage the generator.

We are full time Rvers and would really like to have hot water again.
I hope that this is a simple fix and that I am simply overlooking something (anything), but if it’s at the end of its useful life that is another matter entirely.

This is our first motorhome. We decided to go with this specific unit to see if we can prefer a motorhome vs. a towable trailer. We plan to replace our coach at the end of the year with another (used) Monaco.

Thanks for any input you may have.
Attached Thumbnails
Click image for larger version

Name:	tstat photo.jpg
Views:	34
Size:	212.8 KB
ID:	239144   Click image for larger version

Name:	tstat photo2.jpg
Views:	40
Size:	195.1 KB
ID:	239145  

Hunny Badger is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free! 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!

Old 03-23-2019, 03:05 PM   #2
Senior Member
Dsallach's Avatar
Monaco Owners Club
Join Date: Jun 2014
Location: Jensen Beach, Florida
Posts: 753
If you have no propane to your stove burners, hot water heater and lpg generator, your propane issue is not in the hot water heater. I am not familiar with any generator that runs on propane and/or diesel in one unit. What model generator do you have?
I cannot tell from your post whether you have some propane flow at the stove burners and just not enough to make a standard flame. If you have a bad regulator you will still have a little flow. If you have no propane flow there may be a safety shut down stopping the flow. Either excessive free flow safety or something like a propane detector shutting a safety valve.
As for the water heater, you need to be sure you have propane flowing to the unit. from the pictures you posted you have or had an obvious electrical short that caused wires to melt. You need to correct this electrical Issue first. Once the electrical and propane flow issues are corrected you can better evaluate the water heater. If the water heater is not leaking it can be repaired. Wether it is economically feasible is another question.
Hope this helps
Happy Camping, Safe travels and may our paths cross someday!

40' 2000 Monaco Windsor, ISC350 Cummings w/Allison 3000 6 speed and Jeep Cherokee toad. We're all old but, we keep on trucking!
Dsallach is offline   Reply With Quote
Old 03-23-2019, 03:06 PM   #3
Senior Member
Old-Biscuit's Avatar
Join Date: Nov 2015
Posts: 21,691
Main LP Regulator should maintain 11"WC (0.4 psi)with ALL propane appliances in service

Opening Propane Service Valve to quickly can trip the Excess Flow Device...when tripped it drastically limits the flow of propane.
Close Service Valve---wait 30 seconds then SLOWLY Open it.
Check flow by lighting off stove top burners
IF still an issue...Regulator probably needs replaced

Suburban SW10DE
10 gallon combo (gas/electric) with electronic ignition (no pilot)

120V AC is a complete separate system from Propane System which uses 12VDC

Electric Circuit
120V AC comes from Circuit Breaker
*From CB to junction AC Junction Box (right side looking from rear of water heater. Wire nuts used...common failure)
*From AC Junction Box to On/Off Switch (OEM in outside compartment---common failure)
(RV MFG may have a switch inside RV---both have to be ON)
(From switch to set of t-stats (Top/HI Temp---manual reset/trips at 170*F then to Bottom/Normal Temp---Opens at 130*F/Closes at 100*F)
Common failure is wires rubbing against sharp edge on cut-out
*From t-stats to Element then back to Main AC Panel via Neutral

Black Wires ...120V AC (Hot)
White Wire...120V AC (Neutral

Continuity test on element-----
*Disconnect Black with (Power OFF)
*Test for continuity between Black & White Wire Terminals
NO Continuity---bad element
*Test for continuity between White Wire Terminal & Element Flange
Got Continuity....element shorted out

Gas circuit
12V DC comes from FUSED source
*12V DC to On/Off Switch for 'Gas" inside RV
*From switch to DC Junction Box (left side looking at rear of water heater) Wire nuts used---common failure
*From Junction Box to set of t-stats (same as AC side)
*From set of t-stats to circuit board (Backside of water heater)
*From circuit bd to GAS Valve and Spark Electrode (Gas valve Solenoids get 12V DC for 6-8 seconds WHILE Spark Electrode if firing. Both solenoids have to work for gas valve to open. Resistance should be 40-50 ohms.
Inside solenoid common failure

Follow the 120V AC Circuit...find where it isn't
Follow the 12V DC Circuit....find where it isn't
Fix those and electric/propane will function

Here are the OEM Wiring Diagrams

I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor & NUWA 5vr
US NAVY---USS Decatur DDG-31
Old-Biscuit is online now   Reply With Quote
Old 03-23-2019, 07:11 PM   #4
Junior Member
Join Date: Mar 2019
Posts: 2
Wow, thanks for all the great information!
Hunny Badger is offline   Reply With Quote
Old 02-22-2020, 07:47 AM   #5
Senior Member
Radacravitz's Avatar
Monaco Owners Club
Join Date: Sep 2016
Posts: 1,054
Originally Posted by Hunny Badger View Post
Wow, thanks for all the great information!
@Hunny Badger, how did you resolve this situation?
Radacravitz is offline   Reply With Quote

heat, heater, monaco, monaco dynasty, suburban, water, water heater

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Suburban SW10DE Water Heater afmedic Class A Motorhome Discussions 4 04-08-2017 06:22 PM
Suburban SW10DE farmertom Newmar Owner's Forum 6 04-06-2016 01:47 PM
Suburban SW10DE peterfm Travel Supreme Owner's Forum 8 06-06-2014 03:27 PM
Suburban sw10de water heater works but won't cut off. TA in LA RV Systems & Appliances 5 08-22-2013 12:15 PM
Suburban SW10DE Repair roadstar99 Newmar Owner's Forum 2 03-31-2012 07:06 PM

» Featured Campgrounds

Reviews provided by

All times are GMT -6. The time now is 07:45 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.