20 Most Recent Noritz 6.9 Gallon Residential Tankless Water Heater - N-069M - Page 6 Questions & Answers

check your gas pipe size. make sure you have enough gas running to the unit. also turn all your faucets on hot and turn off the cold water to the heater and see if you get any water out of the hots anywhere, that could mean that you have a cross connection.

You're most likely getting a pressure wave (spike) that is generating momentary flow across the flow sensor. The heater is registering this "instant" flow and beginning its firing sequence. Once the flow dissipates, the unit then goes into a purge cycle. I'd recommend having your water pressure tested to make sure it isn't abnormally high (above 60 psi) or abnormally low (below 30 psi). Assuming the pressure is normal, you can use a pressure reducing valve or pressure regulator to absorb the spikes and stop the unit from cycling.

I am not sure they are available to non Hitachi service centres. https://documentation.hitachiaircon.com/glb/en/pac/rua-at3s

Cannot find the fault code . There are vidoes on u tube saying how to reset thr code By pressing the reset button . If this does not work youcan ccontact vaillent on there web page . I have a mate who works for them i will ask him as well

Do I need to insulate this heater out in the shed? Freezing temperatures

Call a engineer

The P8 fault can mean many things when it pops up on your Mitsubishi Electric wall controller. The P8 fault is activated when the indoor coil sensor does not change the temperature for a set amount of time after the compressor is (or should be) switched on.

Where does the tube sensor go

This one looks the same.https://www.ebay.ca/itm/133397559348They are made by Harper Wyman and using that model number, this is the result.https://www.google.com/search?q=Atwood+RV+oven+control+valve+57294But this shows more that looks similarhttps://www.google.com/search?q=Harper+Wyman+oven+control+valveAnd then if we go here and Zoom in, you will see MTZ 22300https://youngfartsrvparts.ca/products/used-atwood-wedgewood-oven-thermostat-57294Which leads us here and the Specs Sheet.https://www.copreci.com/en/gas-cooking/product-range/thermostats/with-safety-and-thermostatic-flow-regulation/372-mtz-22300-seriesand from there to here, and Parts Town stocks them!List Price: $ 318.24https://www.partstown.com/fagor-commercial/fgrc12008712..

call plumber to replace gas valve, it may cheaper replace water heater. gas valve is not DIY

test for sticking relay faulty circuit board or faulty stat

Beware when working with electrical equipment. It may cause electric shock. Check the power supply wires, connections with heating coils. If they are ok then possibly heating coils require replacement.

I would try their website; www.statewaterheaters.com They should show a list of their service agents.

You have to fix the root cause before you reset it. https://www.google.com/search?q=Clearflow+Bestway+Pool+Heater.+It+has+an+E6+error+code ..

Domestic Central Heating, Dodge Caravan, well pump or a Pool Heater, or something else. All questions need 'make model (what it is)' as first 3 words. With the exception of the Dodge Caravan, pumps have a small bleed screw. Google make model bleed pump or if it is an above ground well pump make model prime pump This is heavily weighted towards vehicles, but you will get the ideal of the power of Google! https://www.google.com/search?q=%E2%80%8Bmake+model+bleed+water+pump ..

Call for Service. The timer is fine, the boiler has failed. I presume it is gas fired, which means that only gas registered service techs can work on it.

Energy smart water heater has start up failure problem so how to resolve

Check the thermocouple and the control box.