|
| I have a 12 year old Rudd electric 30 gal. hot water heater that was losing it's ablility to keep the water up to temp. (115F). I would have preferred to just install a new one but decided to replace the elements and see how that worked. I live in Florida and have had the unit on a water softener 90% of its life, I also drain the tank every year and only get a half gallon of rusty water with very little sediment and no metal fragments so I felt the tank should be in ok shape.
Well at first the new (proper sized-4500 watts) elements seemed to do better but I still ran out of hot water rather soon. So, I decided to replace the thermostats to see how that faired. The first day was really great but then it was not keeping the water hot for very long again. I'm wondering if there is a lot of normal variation in the water temperature or is the unit supposed to keep the water at the set temp. all the time. I Don't think there's anything left to do or replace except the entire heater itself. Any suggestions. Gary |
Follow-Up Postings:
|
| 12 years......replace it and be done, IMO. Get a 40 while you're at it. "I'm wondering if there is a lot of normal variation in the water temperature or is the unit supposed to keep the water at the set temp. all the time." Beyond a few nominal degrees, there should be no variation. Should keep at set temp. Of course allow for recovery time if you've used a lot. |
|
| Is it losing temp just sitting there or just when you are using water? If the temp drops fast when hot water is being drawn but then recovers when there is no usage, it could be a dip-tube problem. |
|
| Well on closer examination the tank is 40 gal. but I read the serial number wrong too and it turns out to be 14 years old and from that period of '93 through '97 where they used inferior plastic for the dip tubes. My fault for not being more through...had I known I would have replaced it immediately. But now that I've replaced the elements and thermostats I plan to stick with it and replace the dip tube next week with the thought that it may have broken. Does anyone know how far from the bottom the dip tube should be? The length of tube I have would end up about 6" from the bottom...thinking of cutting it so it's about 12" up. Hopefully the old tube is still intact and that would tell me..of course if it is then I didn't need to replace it!! I've already picked out a new tank but approaching this as a learning lesson for now...don't want to turn off the life support yet. Gary |
|
| 14 years....hope it's in a place where a leak can drain away freely without doing damage, because that's what's coming. Otherwise, best of luck with your experiments. In your shoes, I'd replace. |
|
| Well I opened up the cold water inlet to check and replace the dip tube if necessary and there was no dip tube at all, just the flanged end. Installed the new tube and fired her up and now have plenty of hot water and good duration. Since unit is located in the garage and everything is raised off the floor (flood zone in SW FL) I'll just see how long it lasts from here on. At least now I've learned enough to to make a faster and more knowledgable decision when the tank does go. |
Please Note: Only registered members are able to post messages to this forum. If you are a member, please log in. If you aren't yet a member, join now!
Return to the Plumbing Forum
Instructions
- You must be a registered member and logged in to post messages on our forums.
- Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
- After posting your message, you may need to refresh the forum page in order to see it.
- It is illegal to post copyrighted material without the owner's consent.
- HTML codes are allowed in the message field only.
- No advertising is allowed in any of the forums.
- If you would like to practice posting or uploading photos, please visit our Test forum.
- If you need assistance, please Contact Us and we will be happy to help.