 |
06-20-2006, 06:14 AM
|
#1
|
|
1 Rivet Short
1989 25' Excella
By The Bay
, Rhode Island
Join Date: Apr 2006
Posts: 1,620
|
Water heater rapid cycling on/off
We have a propane only DSI water heater that has started cycling on/off constantly (even with no water being used). Water is plenty hot, and there is more than enough to shower. Plenty of propane in the tanks, all other appliances run well so I am assuming pressure is ok.
Any ideas what causes this and how to fix?
Thanx, Bill
|
|
|
|
06-20-2006, 06:45 AM
|
#2
|
Rivet Master  Commercial Member
Vintage Kin Owner
Naples
, Florida
Join Date: Dec 2005
Posts: 7,508
|
Quote:
|
Originally Posted by BillTex
We have a propane only DSI water heater that has started cycling on/off constantly (even with no water being used). Water is plenty hot, and there is more than enough to shower. Plenty of propane in the tanks, all other appliances run well so I am assuming pressure is ok.
Any ideas what causes this and how to fix?
Thanx, Bill
|
Bill,
It's hard to say without being there, but start with checking and cleaning the LP supply lines to the burner, the burner itself and the burner orifice. Any blockage there could be the cause. Of course, there is always the igniter board. They bite the dust on a regular basis and need replacing. If it is the board (any equipped RV shop can test it for you) you should replace it with a Dinosaur Electronics board. 3 year warranty and the boards are built so space program specs (without the government contract prices  ).
Also, check your ECO and t/stat. The 12VDC runs thru them in a circuit loop and one of them might be bad as well, causing your cycling problem.
Keep us posted on your results and progress! Good luck. 
__________________
lewster
Solar Tech Energy Systems, Inc.
Victron Solar Components and Inverters, Zamp Solar Panels, LiFeBlue and Battle Born Lithium Batteries, Lifeline AGM Batteries
|
|
|
|
|
06-26-2006, 01:51 PM
|
#3
|
|
1 Rivet Short
1989 25' Excella
By The Bay
, Rhode Island
Join Date: Apr 2006
Posts: 1,620
|
Update
Well we had another rain filled weekend here in New England...so I had the time to look at the water heater. Cleaned out the tube, checked all the clearances, and fired it up. Everything looks fine, did not cycle like it was before...maybe I fixed it?!
Thanx Lewster
|
|
|
|
|
07-12-2006, 05:54 PM
|
#4
|
|
1 Rivet Short
1989 25' Excella
By The Bay
, Rhode Island
Join Date: Apr 2006
Posts: 1,620
|
Need more water heater help
Had a good trip last weekend but still had water heater trouble. It appears that the terminal on the "blue box" at the bottom of the Atwood heater (see pic) is loose and may be on the way out. I stipped back the red wire from the ECO and clamped a new terminal plug on there, and that seems fine. When I jiggle the terminal on the blue block it runs better, doesn't sputter. So I believe it is the blue box and not the wire.
What is the blue box and where do I get one?
Please see bottom of picture.
Thanx, Bill
|
|
|
|
|
07-12-2006, 08:20 PM
|
#5
|
Rivet Master
1994 30' Excella
Mississauga
, Ontario
Join Date: Jun 2004
Posts: 1,243
|
Looks like the gas valve to me!
Al
|
|
|
|
|
07-12-2006, 11:29 PM
|
#6
|
Rivet Master Commercial Member
Vintage Kin Owner
Naples
, Florida
Join Date: Dec 2005
Posts: 7,508
|
Those are the solenoids (2 of them in redundant series connection for safety) that open and close the gas valve above them. You probably need to replace the entire gas valve as I haven't seen the solenoids available separately lately.
Any good RV parts place should have them. If you have trouble finding one, PM me and I'll get it for you.
__________________
lewster
Solar Tech Energy Systems, Inc.
Victron Solar Components and Inverters, Zamp Solar Panels, LiFeBlue and Battle Born Lithium Batteries, Lifeline AGM Batteries
|
|
|
|
|
07-13-2006, 10:40 AM
|
#8
|
Rivet Master Commercial Member
Vintage Kin Owner
Naples
, Florida
Join Date: Dec 2005
Posts: 7,508
|
There are several different designs from a few manufacturers out there. I would call CW (if that is where you will buy it) and give them the model # of your heater and ask them if it will fit properly. You can sometimes shoe-horn them in, but I don't do this when working with LP gas! You really want the OEM part that fits your heater.
__________________
lewster
Solar Tech Energy Systems, Inc.
Victron Solar Components and Inverters, Zamp Solar Panels, LiFeBlue and Battle Born Lithium Batteries, Lifeline AGM Batteries
|
|
|
|
|
07-13-2006, 11:50 AM
|
#9
|
|
1 Rivet Short
1989 25' Excella
By The Bay
, Rhode Island
Join Date: Apr 2006
Posts: 1,620
|
Quote:
|
Originally Posted by lewster
There are several different designs from a few manufacturers out there. I would call CW (if that is where you will buy it) and give them the model # of your heater and ask them if it will fit properly. You can sometimes shoe-horn them in, but I don't do this when working with LP gas! You really want the OEM part that fits your heater.
|
I couldn't agree more-but where do I get an OEM Atwood valve?
The heater is model # G6A-6E DIS, I beleive original-1989.
Thanx, Bill
|
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
|
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Linear Mode
