Question about Noritz 6.3 Gallon Residential Tankless Water Heater - N-063S

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No heating of water from Noritz 075 M tankless water problems

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

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Posted on Jan 02, 2017

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SOURCE: Noritz tankless water heater not producing hot water

I called Noritz error code 16 is a overheat problem. Noritz say's to flush your coil with vinegar or CLR.
Use a small pump to recirculate the CLR or vinegar through the system for 45 minutes and flush with fresh water. This worked for me.

Posted on May 12, 2009

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SOURCE: Noritz tankless water heater/dishwasher not hot enough to clean

You are doing everything you can. Your dishwasher probably isn't drawing enough hot water to activate the unit so opening the faucet and flowing more water will activate the unit. Just try to adjust the flow from the faucet to a point it, plus the draw from the dishwasher, will activate the unit. This will come with trial and error as I am sure you have already experienced. Also, open the dishwasher when it does get filled and check the water temperature. You might have the unit set at a low discharge temperature. Do you have a touchpad to control the water temperature adjustment?

Posted on Jun 10, 2009

senor8
  • 73 Answers

SOURCE: what is error code 59 on a noritz tankless water

The 59 code is typically caused by insufficient gas supply to the unit. It can also be caused by obstructed exhaust flow, stuck exhaust damper (located directly on top of the unit's exhaust), insufficient makeup air, or improperly installed venting (i.e. too long or too many elbows).

I would recommend initially checking the incoming gas pressure at the gas connection on the unit. The gas pressure should not drop below 5" water column for a natural gas unit, 8" for a propane system (the unit need to be operating at its maximum output).

Posted on Aug 14, 2009

senor8
  • 73 Answers

SOURCE: Water Heater Won't Fire up

There are a few things you'll want to check:
1) make sure you have 120VAC at the outlet
2) measure voltage across the blue/white and black/white wires connected to the gfi (black box inside the unit on the bottom left or right hand side). You should read roughly 100 VAC on both sides. If you don't read voltage on the black/white wire pair, then you gfi is tripped. Look for moisture that might be shorting the gfi.
3) If the GFI checks out ok, you probably have debris clogging your flow sensor

Posted on Aug 15, 2009

  • 2 Answers

SOURCE: Noritz Tankless error code 16

The trick with these hot water heaters is to keep the filter screen clean and flush the system with CLR periodically. Code 11 is ignition error. Is your gas valve turned on?

Posted on Dec 09, 2009

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I have a Noritz tankless water heater (model n-132m). I am getting an error code of 71. What does that mean?


The Noritz Manual shows fixed for the following error codes:
11
21
90
99
For all other codes this is the recommendation:
Contact our sales agent if:
• Any other error code appears.

Sep 12, 2014 | Noritz Commerical Tankless Water Heater...

1 Answer

Vibrating when the heater starts to heat water


Things to Check:

1. incoming gas pressure (minimum 5" when unit firing)
2. Make sure damper on top of unit isn't sticking
3. check vent length and #elbows versus installation manual specs
4. if above 2000', disconnect high elevation termination

If these all check out, you'll probably need to do a manifold adjustment. Call Noritz for assitance on this.

Apr 09, 2011 | NORITZ Natural Gas Tankless Water Heater...

1 Answer

I'm working on a n-0931m noritz and i have a 61 code flash and water leak out the blower housing i assume the heat exchanger is bad. is a heat exchanger difficult to replace


61 code is a fan motor abnormality. It typically indicates the fan is damaged and needs to be replaced. It can be caused by water leaking onto it from the heat exchanger.

The heat exchanger isn't difficult to replace, but it is confusing if it's your first time doing it. I'd recommend calling Noritz for assitance.

Mar 12, 2011 | Noritz Residential Heaters Tankless Water...

1 Answer

I have a noritz water tankless heater and hot water stopped. Red light blinking three times. Need help.


Three flashes typically indicates the unit is overheating due to scale. I'd try a descale initially and see if that remedies the problem.

Dec 27, 2009 | Noritz 6.3 Gallon Residential Tankless...

1 Answer

Error code 14 shows on the remote for a noritz tankless lpg water heater. what does it mean?


This means the thermal fuse has broken and needs replacement. The thermal fuse is a white cord which wraps around the heat exchanger. It typically breaks if the unit is excessively dirty and sooted. Before the fuse is replaced you should make sure the unit is cleaned with compressed air and descaled.

Dec 10, 2009 | Noritz 6.3 Gallon Residential Tankless...

1 Answer

Noritz Tankless error code 16


The trick with these hot water heaters is to keep the filter screen clean and flush the system with CLR periodically. Code 11 is ignition error. Is your gas valve turned on?

Oct 17, 2009 | Noritz 6.9 Gallon Residential Direct Vent...

2 Answers

Noritz tankless water heater not producing hot water


I called Noritz error code 16 is a overheat problem. Noritz say's to flush your coil with vinegar or CLR.
Use a small pump to recirculate the CLR or vinegar through the system for 45 minutes and flush with fresh water. This worked for me.

Jan 04, 2009 | Noritz 6.9 Gallon Residential Direct Vent...

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