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Topic: Rebuilding Aqua Hot (Read 7036 times) previous topic - next topic

Re: Rebuilding Aqua Hot

Reply #140 –
Rudy, I will give it a shot. I've been trying to track down a relay  solenoid  mounting brakcet in case there is  a ground out in it. No luck on the internet over the weekend. With rain most of the week, I can try calling real live people.

Larry

Re: Rebuilding Aqua Hot

Reply #141 –
Larry, Go to parts.rvhydronicheaterrepair.com, put relay mount in search window, scrol down and there it is for $27.

Re: Rebuilding Aqua Hot

Reply #142 –
thanks Rudy, your the best

Re: Rebuilding Aqua Hot

Reply #143 –
Rudy, tried removing the Tstat wires. No change. The fans still ran. Since it was happening to all 3 fans and not just one, I figured that maybe I had shorted out something going back together. I went back to my original photos to see where the short could be. On closer examination, I found my error. On all three of the relay mounts, where wires were supposed to connect to terminal 4, I had hooked up to terminal 1 by mistake. Changed that, and all the fans are silent with the relays in and the Tstat wires hooked up. I will blame fatigue as a good of excuse as any. Sure am glad that others had emphasized the importance of documentation when taking apart.

I also hooked up the water supply into the AH coils and hot water out. I'm not overly confident that the pex fittings will hold. My first time with them and I'm not  impressed. I wanted to rework everything with sharkbites, but HD didn't have the PEX to PolyButyl fittings which would have been needed to attach to the  lines from the factory. I will fill the tank tomorrow, weather permitting and check for leaks. Right now, it is raining and I'm tired. Till tomorrow.

Larry

Re: Rebuilding Aqua Hot

Reply #144 –
Larry do you mind posting the pics of the connections for future searches?

Re: Rebuilding Aqua Hot

Reply #145 –
Larry, I am sending you a Papal blessings for attacking such as project!  My hat is off to you, as I am sure that others on here can only guess to the amount of work, thinking, solving, etc. that went with this project!  Thanks for the many photos and advise, no goes, etc.

Re: Rebuilding Aqua Hot

Reply #146 –
Thanks everyone for the well wishes. I appreciate it. I finally got off my duff and downloaded more of the pics. I will try to pick up where I left off.

Larry

Re: Rebuilding Aqua Hot

Reply #147 –
Remember, you were the ones who wanted pictures ^.^d Here are more.

Re: Rebuilding Aqua Hot

Reply #148 –
this was my first time with PEX. Only had 1 leak and fixed it with a Sharkbite. I feel it to be a huge success. I'm testing the electric heating element now, but first it's time to BBQ.

Larry

Re: Rebuilding Aqua Hot

Reply #149 –
Great job Larry! And yes we do like pictures and so do you. It helps bring home the most excellent work that you did on this job. I like how you brought the plumbing out through the front as intended by aqua hot versus how it is in my coach and probably others. Not looking forward to doing this job mind you, but if I do have to do it having seen what you have done and read what others have done, I'm pretty sure I can tackle it myself as well. Again great work and thanks for posting!
Bob

Re: Rebuilding Aqua Hot

Reply #150 –
Thanks Bob. I hope you never need to do this either. It's a great learning experience, but not necessarily real fun. By bringing it out the front, I can isolate the engine coolant from the AH if needed so as to not have to replace 16 gallons of antifreeze again. I originally intended to isolate the hot water supply also, but their wasn't enough room for the valves, so I removed them.

Larry

Re: Rebuilding Aqua Hot

Reply #151 –
I hearby declare that this project is completed. I test ran the diesel side of the AH. Turned on the switch...................nothing. No light, no humming, oh boy. Did some checking. A 10 amp fuse had popped on the AH panel. (I only confess to this so that if someone else has this issue, it gives them a place to start looking.) Replaced and tried again. Sucked the fuel into the new filter and timed out. Nothing.  Tried again, fired right up. It didn't smoke spit or sputter. YES!!!!!!!!!!!!!!  Then for the finally, I attached the new chrome tip to the new exhaust pipe.