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07-12-2018, 02:54 PM
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#1
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Junior Member
Join Date: Jul 2018
Posts: 6
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water heater sw6de
Newbie just bought shamrock by flagstaff rv with sw6de water heater. works on propane not electric. replaced element and meter says both white and black terminals 120 v but not heating. How is this possible????
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07-12-2018, 03:02 PM
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#2
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Senior Member
Join Date: Nov 2014
Posts: 1,179
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Shorted or open electric element. Turn off 120VAC, disconn3ct at least one wire and meter the element.
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07-12-2018, 03:18 PM
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#3
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Junior Member
Join Date: Jul 2018
Posts: 6
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Silly question, but if open can it be fixed or do I need to replace? Remember Blender had open circuit anfd had to replace inline thermal fuse
Steve
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07-12-2018, 03:18 PM
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#4
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Senior Member
Join Date: Feb 2012
Location: Wisconsin
Posts: 13,707
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Is there a rocker switch in the water heater compartment like the one shown as part #33 in the link below? If so it needs to be 'on' for the electric side to work. Link:
https://www.manualslib.com/manual/13...page=30#manual
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07-12-2018, 03:28 PM
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#5
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Junior Member
Join Date: Jul 2018
Posts: 6
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Yes switch is there. Put in on position then next morning put in off. Inside switch always off to try and run electric only to test
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07-12-2018, 03:32 PM
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#6
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Junior Member
Join Date: Jul 2018
Posts: 6
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if I have 120v to both white and black, does it matter what position switch is in? Just trying to reason this out. If I flip switch, only one wire hot. Flip it again and both wires hot.
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07-12-2018, 03:39 PM
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#7
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Senior Member
Join Date: Nov 2014
Posts: 1,179
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Switch? What switch are you asking about? How are you checking the power at the heating element? Across the terminals or terminal to ground.
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07-12-2018, 03:41 PM
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#8
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Senior Member
Join Date: Nov 2014
Posts: 1,179
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Quote:
Originally Posted by smatt
Silly question, but if open can it be fixed or do I need to replace? Remember Blender had open circuit anfd had to replace inline thermal fuse
Steve
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Check with ohm meter. Wires disconnected. Out of spec or open means element is toast.
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07-12-2018, 03:42 PM
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#9
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Junior Member
Join Date: Jul 2018
Posts: 6
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terminal to ground
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07-12-2018, 03:52 PM
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#10
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Site Team
Join Date: Oct 2014
Posts: 15,265
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Check the over temp thermo discs. Press the two black round discs ( on the black section) on mid left side of outside unit. If one clicks it was tripped and try again.
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07-12-2018, 03:56 PM
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#11
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,074
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I'll caution on how you are testing having 120v on both sides of the element?
If having your (-) meter lead on a 120v neutral/ground and you check both sides of the element and have 120v, The element is good and the the WHITE wire going back to the junction box (at the heater) has an issue or is disconnected. You could also have an issue at the outlet where the water heater is plugged in. (hot leg but no neutral/ground)
One more question... do you have an inside AND outside switch?
Those models with TWO 120v switches use a relay to switch voltage.
Here is the schematic.
It is pretty straightforward.
__________________
2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2017 Ford F-Series SCREW 4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
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07-12-2018, 03:58 PM
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#12
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,074
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Quote:
Originally Posted by Flybob
Check the over temp thermo discs. Press the two black round discs ( on the black section) on mid left side of outside unit. If one clicks it was tripped and try again.
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If there is voltage at the element, the over-temp/stat is OK.
It goes through those to get to the element.
OP indicated voltage at the element.
__________________
2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2017 Ford F-Series SCREW 4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=118 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=118☼ '24=86
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07-12-2018, 04:01 PM
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#13
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Junior Member
Join Date: Jul 2018
Posts: 6
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Had to do that first thing to get gas to work. Right clicked and gas ran fine. Left button did nothing but when I replaced element (it was cracked; probably very old) and got 120 to both terminals I figured reset was okay.
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07-12-2018, 04:12 PM
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#14
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Senior Member
Join Date: Aug 2013
Posts: 7,916
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Not that it applies here.... you can have voltage and no amperage... IE bad connection
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