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08-18-2019, 05:47 PM
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#1
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Junior Member
Retired Fire Service RVer's
Join Date: Aug 2018
Posts: 29
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Hot water switches
I have a 2004 Newmar Dutchstar. In the switch panel above the entryway to the coach,there are two switches for the water heater. I'm assuming one for propane and one for electric. Niether is labeled. How do I tell the difference?
Thank you.
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08-18-2019, 05:59 PM
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#2
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Senior Member
Join Date: Mar 2015
Posts: 2,984
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Turn on just one switch, run the shower with hot water blasting and see if the propane burner comes on, then you know that is the propane switch, right? If not, that is the electric heater. If so, see if the water warms up again in 20 minutes to verify the electric element works. This is the kind of simple testing skills that are critical for RV ownership unless you have a lot of money.
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'04 Newmar Mountain Aire 4016
400ISL/Freightliner
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08-18-2019, 06:00 PM
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#3
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,486
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I don't know if there were changes between 99 and 04 but my 120 volt switch for the water heater is a standard house style rocker switch and the 12 volt control for the propane is on a small rocker with an LED indicator beside.
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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08-18-2019, 06:16 PM
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#4
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Senior Member
Join Date: Jan 2018
Location: Capistrano Beach, California
Posts: 4,465
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Quote:
Originally Posted by Skip426
I don't know if there were changes between 99 and 04 but my 120 volt switch for the water heater is a standard house style rocker switch and the 12 volt control for the propane is on a small rocker with an LED indicator beside.
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As mentioned above, there is usually a light of some type to indicate failure of the propane to light/burn. If there is a light on the switch, that’s likely the switch for gas. If there is a separate light, you can try this: Turn off propane at the tank. Flip both switches ON. Soon, the light should come ON because there is no gas available. Turn OFF one of the switches. If light goes out, that switch was for gas heating. If light stays ON, it’s the other switch.
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Larry, Eileen, and Finley
2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.
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08-19-2019, 07:53 AM
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#5
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Junior Member
Retired Fire Service RVer's
Join Date: Aug 2018
Posts: 29
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Thanks for the ideas. Each switch is a household type switch,and each has an LED light. I'm currently plugged into 120 volt extension cord from my home. Does the heater automatically select which power source to use....like my refrigerator does?
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08-19-2019, 08:50 AM
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#6
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Senior Member
Join Date: Jan 2018
Location: Capistrano Beach, California
Posts: 4,465
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Quote:
Originally Posted by nmDutchstar
Thanks for the ideas. Each switch is a household type switch,and each has an LED light. I'm currently plugged into 120 volt extension cord from my home. Does the heater automatically select which power source to use....like my refrigerator does?
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Typically, NO. The water heater is capable of heating using both electric and gas at the same time so there is no need nor desire to "select" between the two.
I'm not familiar with the setup on your MH so someone with the exact same design should correct anything that follows. Again, typically, the light glows only if there is a failure in the attempt to heat the water. I've not seen the light associated with the electrical element, but if it is, it may be to indicate the electrical element has been selected, which is the opposite of the light for the gas heating. Someone with a Dutchstar will, hopefully, explain the two lights and their function
Can you post a picture of the control panel showing the switches and lights?
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Larry, Eileen, and Finley
2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.
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08-19-2019, 09:06 AM
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#7
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Senior Member
Newmar Owners Club Vintage RV Owners Club Spartan Chassis
Join Date: May 2016
Location: Washington
Posts: 287
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The best way to figure out which is gas and which is electrical is to flip one switch on. If the led comes on, then goes off after a few seconds, it's the gas switch. If it stays on, flip the other one on. If it stays on too, you have a problem with the gas ignition system. And it will take more investigation.
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JR & Trouble
USAF Ret. Space Jockey
Traveling with Mags and Little Boy Blue
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08-19-2019, 09:39 AM
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#8
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Senior Member
Join Date: May 2019
Location: Syracuse, Indiana
Posts: 109
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Turn off your LP at the tank and connect to shore power. Flip a switch, do you have hot water? If yes lapel the switch "Electric" and the other switch "LP".
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08-19-2019, 11:16 AM
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#9
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Senior Member
Join Date: Feb 2015
Location: Grapevine, Tx
Posts: 5,634
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Quote:
Originally Posted by FatChance
Turn on just one switch, run the shower with hot water blasting and see if the propane burner comes on, then you know that is the propane switch, right? If not, that is the electric heater. If so, see if the water warms up again in 20 minutes to verify the electric element works. This is the kind of simple testing skills that are critical for RV ownership unless you have a lot of money.
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This.
/thread.
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2004 Fleetwood Southwind 32VS W20 - SOLD!
ReadyBrute Elite towing a 2017 Ford Edge Sport
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08-19-2019, 11:27 AM
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#10
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Senior Member
Newmar Owners Club
Join Date: Oct 2009
Posts: 10,310
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Quote:
Originally Posted by nmDutchstar
Thanks for the ideas. Each switch is a household type switch,and each has an LED light. I'm currently plugged into 120 volt extension cord from my home. Does the heater automatically select which power source to use....like my refrigerator does?
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The 2 household type switches, one is for the hot water heater(120 VAC) and the other is for the block heater(120 VAC)
There should be a 12 VDC rocker switch with a red light beside it for the propane side of the water heater, when I turn mine on, the red light comes on, and after the burner is lit, the red light goes out and the propane side of the heater is working.
Auto select, no.......you have to turn on which one you want to use or turn both on for high demand hot water.
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2012 Essex 4544 2011 Jeep JK, M&G Braking, 2014 MTI 27' Hog Hauler, Wireless brake control, 2006 Ultra & 1989 Springer, 2003 Harley-Davidson
FLHR Road King Anniversary
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08-19-2019, 11:50 AM
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#11
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Member
Join Date: Feb 2018
Posts: 54
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Use your amp meter
A water heater element takes a lot of current. If you have a current meter in that same area you will see a high demand amp jump when you activate the electric element. Do this when the tank is cold just to ensure the element comes on immediately.
I run electric when at a Campground and gas only when needed (30 amp campground I couldn't run AC and Water heater at the same time.)
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Monkeyman, Monkeylady and the chimp
Severn, Maryland
2018 Baystar 3414 - 2013 Prius on a dolly
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08-19-2019, 12:00 PM
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#12
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Senior Member
Join Date: Sep 2013
Posts: 238
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Have some one stand near your WH. When you hit the gas switch they should hear the igniter clicking and then the burner lighting. Also if on gas the WH vent on the side of your coach will be emitting hot Gases.
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2008 Tundra
2015 ST29SS Crossroads TT
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08-20-2019, 05:36 PM
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#13
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Junior Member
Retired Fire Service RVer's
Join Date: Aug 2018
Posts: 29
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Thank you all for the responses. I actually have three switches... propane,electric,and block heater. The block heater is marked but the other two are not. I have a lot of great ideas to try. I'll get to them tonight . Thanks to all.
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scrap-iron
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08-23-2019, 07:10 PM
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#14
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Junior Member
Retired Fire Service RVer's
Join Date: Aug 2018
Posts: 29
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Got it all sorted out finally. Switches are labeled at last. Thank you all for your help.
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