Question about Noritz 7.1 Gpm Natural Ng Gas Tankless Hot Water Heater

Open Question

Water is turning cold after a few minutes running time?

Model #N-0631S

Posted by Anonymous on

Ad

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
heatman101
  • 43501 Answers

SOURCE: have hot water for a

Hi,
The problem may be the flame sensor or the control.....
Check that the flame sensor is clean and also that there is a good ground from the burner to the control....make sure that the wiring to the unit is correct polarity, and then the ground is hooked properly also...
Is it flashing a code and if so, check what the code means....

heatman101

Posted on Dec 21, 2010

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why does the water suddenly runs COLD after many minutes of running hot?


Unless you are using a tankless hot water heater, there is a limited amount of hot water available in the tank. Electric and gas water tanks need time to recover after use, and if you are using heavily, it can exhaust the available supply. That said, there are a couple reasons why you may have less hot water than seems normal. In both electric and gas water heaters, silt can form in the bottom of the tank. This will build up over time and displace water. It also reduces the heating efficiency of gas units. There is a drain valve on the bottom of water heater tanks to allow for purging of this silt periodically, but few ever do it. You could also have, in the case of an electric hot water heater, a bad element or thermostat. Most electric heaters have an upper and lower element and thermostat. If one fails the other will still work, but the water takes longer to get hot and will deplete faster.

Nov 04, 2015 | Water Water Heaters

2 Answers

Is it safe to replace the blown fuse which serves only my small hot water system?


fuses wear out over time even if you dont have short to cause it to blow. yes you can replace the fuse,just be sure to off the power to the box before you do.

Jan 04, 2013 | Water Heaters

1 Answer

How do I manually change the temperature on Noritz N-0631S tankless water heater if I don't have the optional remote controler?


There are temperature jumper clips located on the inside left wall of the heater. They will be in a small plastic baggie. The procedure is as follows:

1. disconnect power
2. install the jumper connector in the plastic slot located between the remote control screws on the circuit board (right hand side of the heater)
3. reconnect power

Mar 06, 2011 | Noritz Residential Heaters Tankless Water...

1 Answer

There seems to be a flow problem. The pressure starts out fine and ends up a trickle but only on the hot side. I have used the T & P valve to try and back flush the unit , to no avail


In order to clean the unit you need to connect a small sump pump to the cold inlet, and run a hose from the hot side into the same bucket. Pour about a gallon a white distilled vinegar in the bucket, and turn the pump on. Let the solution run through the unit for about 15 minutes, then reverse the hose connections and run the pump for another 15 minutes. Reconnect the water supply and outlet. Turn the water on in the bathtub first on the hot side and let ir run for a few minutes before turning the power back on to the heater. While the water is still running turn the power back on and reset the thermostat. If you get a lot of debris in the bucket, you may need to consider installing a water-softener to prevent scaling.

Sep 17, 2010 | Bosch & Tankless LP Hot Water Heater

1 Answer

I have a newly installed Bosch hot water heater. After installing, it seemed to be working fine. It is in a small weekly rental unit. If anything, the unit is over-sized for the demand. Now that it is...


these units need lots of flow to start and run. Set the temp on the unit lower and the people in the shower will have to use more hot and less cold which will make the unit more stable.

Jun 01, 2010 | Bosch & Tankless LP Hot Water Heater

1 Answer

The hot water shuts down for a few minuts then


your unit is undersized or you do not have enough gas supply to run the unit properly.
If you have to many water features running or you have to many gas items turn on at the same time it can cause problems.

Apr 10, 2010 | Rinnai Water Heaters

1 Answer

Rheem tankless water heater error code C4 13??


check diaphrapm valve or micro/switch best of luck

Sep 13, 2009 | Rheem RTG-53PVN Indoor Natural Gas...

1 Answer

Hot water is cutting out after 2 - 3 minutes whilst showering


check the screen on the cold water intake on the cold side,, you might have to flush the system out, and do you have the shower head water restricter in, if not you may be using to much hot water,,, how many other hot water fixtures are running at the same time? try running just the shower,,,if this is a tank water heater the dip tube could be bad that is on the cold side it takes the cold water to the bottom of the tank and forces the hot water out,, if you ar only getting a couple of min of hot water and the dip tube is bad it is not going to the bottom but just at the top and not getting all the hot water you will need a plumber

Mar 21, 2009 | Water Heaters

1 Answer

Cold water coming out of hot water faucet. Was told it was crossover. What's going on?


did you install it or someone else?The first thing I would is check under the sink and look at the pipes coming out of the wall.Hot is suspose to on the left and cold on the right.You tell by turning the water on {let it run for a few minutes}and touch the pipes.

Mar 14, 2009 | Water Heaters

Not finding what you are looking for?
Noritz 7.1 Gpm Natural Ng Gas Tankless Hot Water Heater Logo

Related Topics:

51 people viewed this question

Ask a Question

Usually answered in minutes!

Top Noritz Water Heaters Experts

gizmonix

Level 1 Expert

13 Answers

jasbo
jasbo

Level 3 Expert

2237 Answers

Mack Baxter

Level 3 Expert

383 Answers

Are you a Noritz Water Heater Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...