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Topic: LUKE WARM SHOWER WATER (Read 510 times) previous topic - next topic

LUKE WARM SHOWER WATER

My AH is on on the diesel burner.
the water is the shower and everywhere in the coach is luke warm.

I went outside to the AH bay and the clear pipes with the turn brakets are hot

the red pex pipe is lukewarm and so are the bigger rubber pipes.

the bathroom blower only blows cold air.

the bedroom heat exchangers  work good.

are this 2 problems related.

where do I start?

thank you
2003 Foretravel u320 build 6066
cummins 450 ism
2008 Jeep Cherokee Toad
former Country Coach Owner.
Part time Rv er
Never afraid to learn.

Re: LUKE WARM SHOWER WATER

Reply #1 –
Call, email, or send a PM to Rudy.  He is the AquaHot guru on this Forum.

Trouble shooting guide for Aqua hot AHE 100-02S

https://www.foreforums.com/index.php?action=profile;u=482

Visiting Rudy

For the Do-It-Yerselfer, here is the link to the AquaHot folder in the Forum Library:

https://www.foreforums.com/index.php?action=media;sa=album;in=492

1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: LUKE WARM SHOWER WATER

Reply #2 –
Two problems.

Bathroom blowing cool air is probably fixed by rapping the middle zone pump check valve. while the bathroom is blowing cool air.

Luke warm water in all areas of the coach is a tempering valve problem.  It might be fixed by turning the tempering valve know all the way each way several times.  Then set to a comfortable temp.  If that does not fix it, replace the core of the tempering valve.
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: LUKE WARM SHOWER WATER

Reply #3 –
Mr Rudy.

thank you so much for taking the time to reply i really appreciate the help.

where are this parts located the zone check valve and the tempering valve?

thank you Daniel
2003 Foretravel u320 build 6066
cummins 450 ism
2008 Jeep Cherokee Toad
former Country Coach Owner.
Part time Rv er
Never afraid to learn.

Re: LUKE WARM SHOWER WATER

Reply #4 –
Not Rudy but this will get you started.
1. You will need a Philps screwdriver to remove the Stainless Steel cover to expose the inner workings.
2. Once inside you will see the diesel burner. This is the black round cylinder with a square silver control box (if it hasn't been changed) mounted on the side. Just to the side of the burner you should be able to see the 3 circulating pumps.
3. With the burner off (so you can feal vibration) and the electric element on have someone turn on the bath thermostat. This will trigger the center circulating pump to come on. Feal that pump to see if the motor is running which is good if not well that is another problem.
4. Look at the piping coming off this pump and you will see a check valve. It will look different than the piping and the union that you will find. Now don't beat the crap out of it as just a couple of taps should jar it loose. Once it breaks loose you should be able to tell that the piping is getting hot quickly.
5. The mixing valve will be hid almost under the burner right on the floor. It is the only thing in that area that has a round handle on it. Mine is green some I have seen are black.
6. You will need a flashlight for this adventure.
That is all that I can think of at this time of the morning. Rudy will chime in with more details after a couple of cups of joe.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: LUKE WARM SHOWER WATER

Reply #5 –
Plus, if whacking the check valve does not result in hot coolant flowing to the zone fan coils, then the center pump has lost prime.  I put a radiator pressure tester on the radiator filler neck on the top of the heater tank and pump it up to 15 psi.  Once primed the pump will work fine.

Radiator pressure testers can be rented or sometimes on loan from car parts stores.
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: LUKE WARM SHOWER WATER

Reply #6 –

Here is the Watts mixing valve, you can probably find it at Lowes, etc. also. Sometimes you can find just the "guts".  You just need to unscrew the top, remove the guts and install into your existing mixing valve.  Amazon.com: Mixing Valve, Lead Free Brass : Industrial & Scientific

As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.
Forest & Cindy Olivier
1987 log cabin
2011 Roadtrek C210P
no longer 1999 36' U320 build #5522
2013 Rzr 570 & 2018 Ranger XP1000
2006 Lexus GX470
2011 Tahoe LT 4x4
Previous 1998 45' 2 slide Newell, 1993 39' Newell

Re: LUKE WARM SHOWER WATER

Reply #7 –
I think this may have been covered before.....but
We disconnect from the land line, during the day, to use our very old and limited 360w of solar. Electricity in Mexico is pretty pricey. If I turn off the diesel side of the AH and run the Electric side, will the inverter supply enough power to not wear down the batteries?? It is warm enough here to use unless we need long hot shower.
Of Course, I would fire it up once a week to keep it honest.
If I am straying, sorry.
Glenn and Amy Beinfest
2001 36' U320
#5812
2014 Honda CRV

No Whining on the YACHT

Re: LUKE WARM SHOWER WATER

Reply #8 –
Depends on how much water heating would be required throughout the day. What's the weather like? Not sure if the solar you have would keep the batteries up with high demand of the heating elements. Mine has two elements and if memory serves me right , each draws about 12-14 amps while on. 
Keith and Dawn Hudson #18766
Current- 1999 U295 DFGE 40ft. - Build #5405
Coach Name: 4BUS4US
Previous- 2008 Nimbus CE338: 40th Anniversary Edition- Build #6486. 
Toad: 2021 Jeep Cherokee Trailhawk

 "I know something about a lot of things..a lot about something's..and everything about nothing "

Re: LUKE WARM SHOWER WATER

Reply #9 –
I believe your element in your Aqua-hot used 1600 watts so that would be a big draw on your batteries.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport
 

Re: LUKE WARM SHOWER WATER

Reply #10 –
Thank you for all you input . It helped a lot. I got the bathroom  heat exchanger going by just doing the hammer tap and then the hot water issue was from the mixer valve.
Showers  are hot and comfy..
 you guys are amazing.

sorry for the late reply

i have been very busy
2003 Foretravel u320 build 6066
cummins 450 ism
2008 Jeep Cherokee Toad
former Country Coach Owner.
Part time Rv er
Never afraid to learn.