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Navien NCB-240E Error code E.001 after maintenance to clean filters, etc.

Navien NCB-240E and did seasonal maintenance. Drained, cleaned filters, etc. Turned water and gas valves back on. Powered up and seemed ok. When running a faucet, water symbol came on and showed burner symbol. After a few seconds I get E.001. looking for suggestions.

Posted by Ron Fligge on

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5 Related Answers

Therinnaiguy

Chandler Ede

  • 1420 Answers

SOURCE: Rinnai Energysaver 1004FTR (nat gas) RED FLASHES

The filter light can also indicate a build up of debris and lind behind the heater causing the blower to work harder to push out warm air. It could also indicate that the blower may need a cleaning or going bad. I will suggest that you pull the front cover off of the unit to inspect the blower which is located at the top of the heater. Feel the motor as it is running to see if it is hot. If so, you will probably need to replace it. I may have a used on so let me know. If everything in front looks good, pull the top trim panel off of the heater just behind the filters and inspect for dust. Clean with a shop vac. Hope this helps.

Posted on Dec 19, 2008

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Earnest Bowes

  • 234 Answers

SOURCE: code 12 flashes after third faucet is turned on

The gas pipe size that heater has to 3/4 pipe size.If you got anything any smaller than that is won't give enough gas.Check the gas psi at the heater.If it's bottle gas you should 11 psi.and natural gasline you need 5psi.

Posted on Mar 15, 2009

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Anonymous

  • 1 Answer

SOURCE: how to correct error code C-7 on my RTG-74PVN Rheem Pronto

I had the same problem and called the manufacturer. The error code C-8 was followed by the number 76. They told me to disconnect the thermostat/digital display from the main unit. This was fairly simple to do by removing the front panel. The unit works steady now without shutting down after a few minutes. The help desk told me that the main circuit board needs to be replaced for the unit to work with the display and that they would mail me one asap. At least we have hot water again.

Oakville, Ontario

Posted on May 24, 2009

Anonymous

  • 1 Answer

SOURCE: Bosch AQ125BNG Burner goes out even though the

Often, this is the result of a restriction of exhaust gases. This type of hot water heater must be adequately vented, (per installation specs). I found this out after taking a number of cold showers. :^( Two years later, and still counting, no more problems. :^)

Posted on Dec 06, 2009

muttandjeff

Allen Neal

  • 359 Answers

SOURCE: I have a Reliance 501 gas hot water heater that

hook up garden hose to faucet @ the bottom of the tank and drain the hose to the outdoors or down a floor drain and open the valve , leaving the cold supply valve on , let it run until it runs clear , this will get rid of some of the sediment deposit that form at the bottom of tank , is the most effective way i know , good luck

Posted on Dec 31, 2009

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The intellivent gas control valve is removed completely from tank, so tank must be drained.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

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Error codes are start point for troubleshoot.
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Each gas water heater manual recommends yearly maintenance that includes cleaning the burner and combustion parts, which includes check of connections, sensors, venting, gas pressure and air filter, etc.
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I have a Bosch Model GWH 1600 H tankless water heater. I have had issues with it since I installed it 2 years ago or should say had it installed.Yesterday I could not get it to ignite or light manually. I...


Igniter can be ordered, but that may or may not be the issue.
Your tankless unit -and- plumbing system need total check-up by trained service technician.
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Check electrical outlet with circuit analyzer to make sure polarity is correct.
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http://waterheatertimer.org/images/Typical-gas-valve-500.jpg

Newer heater does not have reset for bad thermostat, and in that case you replace gas control valve thermostat.
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I suggest reading manual for installation information, advisories, and required maintenance.
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http://waterheatertimer.org/How-to-install-gas-water-heater.html#clean

There are good utube videos on replacing thermocouple.
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Finger-tighten thermocouple and then add 1/4 turn using small wrench.
The end of thermocouple has a small piece of insulation that isolates the electric current from body of gas control valve. If thermocouple is overtightened, the insulation is crushed, and electrical current millivolts short out and no signal reaches gas control valve, so gas control valve keeps gas turned off to pilot tube.

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Upvote the help.
And take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

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