 |
09-22-2022, 06:54 AM
|
#1
|
|
Junior Member
Join Date: Mar 2020
Posts: 4
|
AquaHot not hot
My 450D has been on a steady decline. First, the diesel burner was sporadic when called on to heat, then it quit altogether. The electric continued but now has fallen upon the same condition. It will heat while we're in-route to our next destination and then will quit again overnight. We're in the middle of a 6 month road trip and really need it to work. I replaced the filter and nozzle all to no avail. Ideas?
Thanks for any help you may provide me.
Jim
2006 Tiffin Allegro Bus 42QDP
|
|
|
 |
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com 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!
|
|
09-22-2022, 07:04 AM
|
#2
|
|
Senior Member
Join Date: Feb 2013
Posts: 558
|
Where are you located?
__________________
2002 Beaver Marquis Emerald C-12 Cat 505 HP towing 2004 Honda CR V with 300K on clock
2014 Volvo 630 Heren Bed ET Hitch SOLD
2017 New Horizons Majestic 35 foot SOLD
|
|
|
|
|
09-22-2022, 07:26 AM
|
#3
|
|
Junior Member
Join Date: Dec 2015
Posts: 29
|
Your circulation pumps maybe stuck.
Try tapping on them to free them up.
__________________
Big Al
2000 Blue Bird Wanderlodge LX ME 40
"Angry Bird" 
|
|
|
|
|
09-22-2022, 09:16 AM
|
#4
|
|
Senior Member
Join Date: Apr 2018
Posts: 3,441
|
If you have the engine heat loop that is why it's hot when you arrive. Your coach antifreeze is heating the aquahot. Check the fluid level first. The float switch in the tank can be bypassed at the board with a jumper to see if it's bad. The AC heating element gets checked with an ohm meter. The AC relay is checked for voltage on the element side, rt at the element if you prefer. There are a few low temp and high limit breakers screwed into the tank as well. Not a real high tech system so download the manual for yours and start checking it out.
__________________
2004 Dynasty 4
|
|
|
|
|
09-22-2022, 01:52 PM
|
#5
|
|
Senior Member
Winnebago Owners Club
Join Date: Sep 2012
Posts: 245
|
I would test the control board with a meter. Have you called AquaHot, they have a test procedure they can help you with.
__________________
2014 Winnebago Tour 42QD
2008 Jeep Liberty
|
|
|
|
09-22-2022, 03:20 PM
|
#6
|
|
Senior Member
Join Date: May 2012
Posts: 3,296
|
Quote:
Originally Posted by A.R.F.
Your circulation pumps maybe stuck.
Try tapping on them to free them up.
|
He said the diesel quit and then the electric quit. Doesn’t sound like bad pumps. More like control board as mentioned.
Call Aquahot. There service techs are good.
|
|
|
|
|
09-22-2022, 11:08 PM
|
#7
|
|
Senior Member
Tiffin Owners Club Texas Boomers Club
Join Date: Feb 2018
Location: North Texas
Posts: 2,121
|
AquaHot has excellent manuals on their web site. Great troubleshooting methods.
The service manual is too big to post here. PM me if you can't find it on their web site. Aqua-Hot Electronic Controller.pdf
Sent from my SM-G973U using iRV2 - RV Forum mobile app
__________________
2014 Tiffin Allegro Bus 37AP
|
|
|
|
|
09-23-2022, 06:12 AM
|
#8
|
|
Junior Member
Join Date: Mar 2020
Posts: 4
|
Danville, Vermont today and New York tomorrow.
|
|
|
|
|
09-23-2022, 07:03 AM
|
#9
|
|
Junior Member
Join Date: Mar 2020
Posts: 4
|
Quote:
Originally Posted by shootist
If you have the engine heat loop that is why it's hot when you arrive. Your coach antifreeze is heating the aquahot. Check the fluid level first. The float switch in the tank can be bypassed at the board with a jumper to see if it's bad. The AC heating element gets checked with an ohm meter. The AC relay is checked for voltage on the element side, rt at the element if you prefer. There are a few low temp and high limit breakers screwed into the tank as well. Not a real high tech system so download the manual for yours and start checking it out.
|
Yes I realized today Shootist is correct, it is the engine heating the water. So, that makes it a little easier to diagnose the problem if neither the electric nor the diesel burner is working. It's a sensor or a circulation pump at fault. Thanks to all for the feedback.
|
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
 Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
