Hello, We have a N-0842-MC-NG that is around five years old. Recently, on our very cold below zero days, it has been taking quite a while to heat up, maybe five minutes. Today it is not heating at all. I don't know if the cold is a coincidence. It has power and flow. The burner light is not on. Do you have any advice? Thank you, Judi
SOURCE: Takes long time to heat then goes from hot to cold.
I know that this is a great answer but with out being there its hard to answer you call there tech support they are great, I have had to call they from jobs before they can help
Phone Support:
Gas Products Technical Support: 800-642-3111
Electric Product Technical Support: 866-330-2729
SOURCE: The power light on my Noritz hot water heat is
what the error code on the unit? if you hold the up and down arrow keys and scroll to the number 90-99 it will give you the codes, or call nortiz and they will walk you through the diagnostics
SOURCE: I have a new Atwood
If it's manual light, then only dial or lever on gas control is adjustable, and you can try turning it up a little at a time. It will increase water temperature so be careful, but that should also make it kick back in sooner as well. If it's electronic ignition, there is 2 or 3 heat settings available in thermostats ( little disc behind foam cover under pressure relief valve) . Obviously on those, if you choose higher temperature, it cuts back in sooner as well. If you have electric element, they have a thermostat on rear of water heater as well, behind electrical connection box. If your not 100% sure what I'm saying here, get back with model number of heater inside cover and I'll tell you your options. Please remember to be careful of scalding when you turn up the temperature.
SOURCE: main burner won't come on.
no its not the problem with thermostart because you said that there is no overheat know.... may be problem with the burner switch..... check it once....
SOURCE: Water is way too hot.
Before calling service technician who has service manual and can test which part has failed, open following links for troubleshooting resources including steps below and phone number for Bosch:
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html
http://www.boschhotwater.com/HelpfulResources/TechnicalSupport/BoschAquaStarModels/2400ETechSupport/Troubleshooting/tabid/1131/Default.aspx
Clean inlet filter
Check all faucets for clear pathway
This unit does not work with preheated water (solar assisted)
Incoming water above 70 degrees, avoid restricted faucets
Check that both temperature sensors are making contact and firmly mounted on respective cold and hot pipes.
Descale heat exchanger
http://www.boschhotwater.com/Portals/7/TechBulletins/TWH-G2-13_Descaling.pdf
798 views
Usually answered in minutes!
×