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08-14-2014, 09:44 PM
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#1
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Member
Join Date: Jun 2014
Location: Prescott Valley
Posts: 94
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Hot water and showering
Our hot water can go from scorching hot to cold while washing dishes and especially while showering. It there an adjustment I am missing? I've set the knob in the BR cabinet to the lowest since we are in the AZ heat.
Thanks,
Joe
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08-14-2014, 09:49 PM
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#2
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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On demand water heater?
TURBS
"SABRE OWNERS UNITED"
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08-14-2014, 09:50 PM
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#3
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Senior Member
Join Date: Mar 2014
Posts: 1,748
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Check your bypass valves.
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08-14-2014, 09:52 PM
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#4
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Junior Member
Join Date: Jul 2014
Posts: 29
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Yeah, your bypass is probably opened. Check it out.
__________________
Stephane, computer tech.
2015 Coachmen Clipper 17BH 50th Anniversary.
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08-14-2014, 09:53 PM
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#5
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Member
Join Date: Jan 2014
Location: Ankeny, Iowa
Posts: 59
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Your water bypass valves are probably in the wrong open/closed configuration causing hot water to surge.
__________________
Rig: 2012 Georgetown 351DS
Family: DW and 3 year old DD and newborn DD
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08-14-2014, 11:39 PM
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#6
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Member
Join Date: Jun 2014
Location: Prescott Valley
Posts: 94
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Thanks everyone, where are the bypass valves?
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08-14-2014, 11:40 PM
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#7
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Member
Join Date: Jun 2014
Location: Prescott Valley
Posts: 94
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Yes the MH has an on demand water heater.
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08-15-2014, 06:59 AM
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#8
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Senior Member
Join Date: Apr 2012
Location: West Michigan/Fort Myers
Posts: 3,927
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Do a search. A lot has been written on this subject. The Gerrard WH are a bit temperamental. A Oxenator shower head will help. Remember it's all about keeping a good water pressure.
Sent from my iPhone using Forest River Forums
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08-15-2014, 07:36 AM
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#9
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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Even with "On Demand" hot water, an open shower faucet with a closed wand can play havoc with water temperature.
With the push button on the wand closed and the valves open, cold water can cross over and dilute what hot water you are getting. This will give you hot water initially, but lukewarm to cold water as the hot water in the pipe is used up.
__________________
Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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08-15-2014, 09:34 AM
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#10
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Junior Member
Join Date: Jul 2014
Posts: 29
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Quote:
Originally Posted by hbjoe3
Thanks everyone, where are the bypass valves?
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They should be right by your tank... you should see three valves, one for the incoming water, one for the outgoing. The bypass is the one in the middle.
__________________
Stephane, computer tech.
2015 Coachmen Clipper 17BH 50th Anniversary.
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08-15-2014, 09:43 AM
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#11
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Senior Member
Join Date: Apr 2012
Location: West Michigan/Fort Myers
Posts: 3,927
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If you have a Gerrard HW heater you do not have a by pass.
Sent from my iPhone using Forest River Forums
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08-15-2014, 09:46 AM
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#12
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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Quote:
Originally Posted by Phil57
If you have a Gerrard HW heater you do not have a by pass.
Sent from my iPhone using Forest River Forums
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Times a million... 
__________________
Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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08-15-2014, 10:00 AM
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#13
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Senior Member
Join Date: Apr 2012
Location: West Michigan/Fort Myers
Posts: 3,927
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Joe a couple if thing. First please add what rig you have to your profile. When I'm on my phone it doesn't show up.
If you have low WP at the site you are try running the water pump. It should give you the WP you need to run the WH. Look for a shower head that mixes air in it. There are a couple out there and they help a lot. Read the old posts on the forum about the Gerrard WH. There is tons of info posted and more than I can relate in this post. Are you using water from your tank or the campground? I know that in AZ some places use a cistern and that could be the problem. If the water is warm coming in it is almost impossible to get the temp right as there is not a thermostat in the water line. If that's the issue call Garrard and they can send you a BTU limiter that closes off half of the burners. We used them before the temperature dial they use now. 
Sent from my iPhone using Forest River Forums
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08-15-2014, 10:13 AM
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#14
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Phat Phrog Stunt Crew
Join Date: May 2012
Location: Upper Penisula Michigan / Arizona
Posts: 2,767
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At our Wildcat plant tour we told that the on demand hot water heater were discontinued for now in the Wildcats. It sounded like users needed to learn how to use it. It delivers hot water a little different than the standard hot water heater. A steady flow of hot water when using it is the key to it.
__________________
 Ed & Ruthann / Toby and Tucker
2014 GMC Sierra Crewcab 2500 Duramax
2014 Wildcat 327ck
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08-16-2014, 12:22 PM
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#15
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Member
Join Date: Jun 2014
Location: Prescott Valley
Posts: 94
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Thanks folks!
We are in a 2014 FR Legacy and currently are hooked up to CG water. Whenever we run the hot water it sounds like the pump is running, but I have it switched off. I am using a pressure regulator. Seems water pressure is low.
It is not just the shower that is a problem, any hot water use will vary considerably, it just is most uncomfortable in the shower.
__________________
2014 FR Legacy
2006 Jeep Unlimited
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08-16-2014, 12:59 PM
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#16
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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Quote:
Originally Posted by hbjoe3
Thanks folks!
We are in a 2014 FR Legacy and currently are hooked up to CG water. Whenever we run the hot water it sounds like the pump is running, but I have it switched off. I am using a pressure regulator. Seems water pressure is low.
It is not just the shower that is a problem, any hot water use will vary considerably, it just is most uncomfortable in the shower.
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Try removing your water pressure regulator. It may be "buzzing" from corrosion in the valve and reducing your water pressure too much.
__________________
Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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08-16-2014, 01:07 PM
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#17
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Member
Join Date: Jun 2014
Location: Prescott Valley
Posts: 94
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Herk,
It is brand new, used about 15 days. I do have a spare so I will swap them out.
Joe
__________________
2014 FR Legacy
2006 Jeep Unlimited
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08-16-2014, 01:09 PM
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#18
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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Quote:
Originally Posted by hbjoe3
Herk,
It is brand new, used about 15 days. I do have a spare so I will swap them out.
Joe
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Trying to think about what could cause the "motor" noise.
Most likely is not a new regulator...
Still thinking... 
__________________
Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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08-16-2014, 01:20 PM
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#19
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Senior Member
Join Date: Feb 2012
Posts: 1,102
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Does the water heater have a fan to exhaust the fumes? Could be that is what you are hearing.
__________________
 Ontario
Current: 2019 Sunseeker 2290S
Previous (2012-2016): 2012 Vibe 6501
1 Prospector Canoe, 2 Mtn. Bikes & 4 Hiking Boots
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08-16-2014, 01:31 PM
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#20
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Member
Join Date: Jun 2014
Location: Prescott Valley
Posts: 94
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Vibe,
I don't think there is a fan, it seems to vent right out the side of the MH. Could it just be burner noise? The pump is on the other side of the MH so I don't think that is it, but sound similar. I'll have the DW run the HW while I look outside.
__________________
2014 FR Legacy
2006 Jeep Unlimited
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