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Started By
Message
No hot water with a tankless water heater outside.
Posted on 1/17/18 at 3:56 pm
Posted on 1/17/18 at 3:56 pm
I have a tankless water heater outside. Cold water will run out the faucets and tubs but can't get any hot water to run out the faucets and tubs. I've tried warming up the exposed pipes out with a hair dryer but no luck. Also, been running the heat all day to try and warm things up. Any ideas what's wrong and how I can fix this?
24
Posted on 1/17/18 at 3:57 pm to lsufan0307
Damn. Sounds like y'all will have to move. Maybe move up north. The northern posters love to tell us all how this shite never happens to them.
Posted on 1/17/18 at 3:57 pm to lsufan0307
Low gas pressure? Is your furnace working properly?
Posted on 1/17/18 at 3:58 pm to lsufan0307
Is this on a separate breaker?
Posted on 1/17/18 at 3:59 pm to Croacka
Yes furnace and gas stove are working fine.
Posted on 1/17/18 at 3:59 pm to lsufan0307
Check your pilot
Posted on 1/17/18 at 3:59 pm to lsufan0307
(no message)
This post was edited on 1/17/18 at 4:04 pm
Posted on 1/17/18 at 3:59 pm to hombreman9
There's a pilot on a tankless water heater?
Posted on 1/17/18 at 4:01 pm to lsufan0307
Did you leave warm water drip from your faucets or cold? The warm water pipe might've frozen if you only ran cold on drip.
Posted on 1/17/18 at 4:01 pm to lsufan0307
Myself and several people in my neighborhood had the same issue this morning. The remotes for the tankless units were actually showing an error code. Are you getting anything on yours?
For most of us, the units started working just on their own around the same time. I thought maybe the slight warm up in the temp may have helped. Others in our neighborhood said that Atmos was in the area and mentioned there was low pressure in the lines. Someone stated that they turned off their heater and then tried using the tankless and it worked. Other people said they shut off the tankless unit and then turned it back on to get it to work.
For most of us, the units started working just on their own around the same time. I thought maybe the slight warm up in the temp may have helped. Others in our neighborhood said that Atmos was in the area and mentioned there was low pressure in the lines. Someone stated that they turned off their heater and then tried using the tankless and it worked. Other people said they shut off the tankless unit and then turned it back on to get it to work.
Posted on 1/17/18 at 4:01 pm to lsufan0307
Take the cover off the water heater outside that is hanging on the wall and use the dryer on the exposed pipes. Your hot water line is froze.
This post was edited on 1/17/18 at 4:02 pm
Posted on 1/17/18 at 4:01 pm to lsufan0307
cold water inlet to your heater is frozen.....
Posted on 1/17/18 at 4:02 pm to lsufan0307
I threw boiling hot water on mine and it started working in seconds when it froze New Years Day
Posted on 1/17/18 at 4:02 pm to lsufan0307
Is it electric or gas?
Posted on 1/17/18 at 4:02 pm to lsufan0307
quote:
There's a pilot on a tankless water heater?
Not on my tankless unit. It uses natural gas but is ignited by an electronic ignition device.
Posted on 1/17/18 at 4:02 pm to lsufan0307
quote:
I have a tankless water heater outside. Cold water will run out the faucets and tubs but can't get any hot water to run out the faucets and tubs. I've tried warming up the exposed pipes out with a hair dryer but no luck.
Hmmm
quote:
Also, been running the heat all day to try and warm things up. Any ideas what's wrong
You could have a frozen pipe on the inside of the heater or you could have low gas pressure.
quote:
how I can fix this?
Step1: Take the outside panel off (if you know how to) and check to see if you have a frozen water pipe on the inside of the unit and/or if the pilot light is still lit.
Step2: Thaw pipe or relight pilot, or call a professional.
Posted on 1/17/18 at 4:05 pm to lsufan0307
i assume you mean you have no water coming out when you open the hot side of your faucets and the problem with tankless water heaters is, they only heat up the water when its flowing, so the hot water outlet pipe has to be frozen up or if you have water coming out when you open the hot side of your faucets then the flow sensor on the water heater has an issue.
also if its gas, then the gas line might be frozen up
also if its gas, then the gas line might be frozen up
This post was edited on 1/17/18 at 4:09 pm
Posted on 1/17/18 at 4:06 pm to lsufan0307
I had the same problem. I put a heat lamp by the exposed pipes. Turned on the H20 inside until system was functioning properly. Then I insulated the exposed pipes. I plan on letting the hot water run tonight.
Posted on 1/17/18 at 4:08 pm to Jambalaya 1
quote:
I plan on letting the hot water run tonight.
I ran a pencil-thin stream of hot water run on the opposite side of the house last night and still had an issue this morning.
Posted on 1/17/18 at 4:08 pm to lsufan0307
quote:
Step1: Take the outside panel off to see if you have a frozen water pipe on the inside of the unit and/or if the pilot light is still lit. (There are some pipes in the bottom panel that are most likely not wrapped) Step2: Thaw pipe or relight pilot, or call a professional.
This post was edited on 1/17/18 at 4:09 pm
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