Not getting any hotwater?? - Rheem Water Heaters

gas valve sticking

Parts list:
http://www.hotwater.com/lit/partslists/197728-004.pdf
Flame rod, flame sensor sits next to igniter inside combustion chamber. This can be cleaned with sandpaper. Do not touch with fingers. Purpose of flame rod is to detect whether ignition has caused actual, sustainable fire inside the combustion chamber.
If sensor is bad, or no ignition is detected after 2-3 attempts, then 'no ignition' error is given.
Bad gas control valve, bad-or-dirty flame rod-sensor, low gas pressure, misaligned rod, dirty combustion parts, etc

Service handbook:
http://www.hotwater.com/lit/training/316586.pdf
High gas pressure spikes can daMAGE gas control valve p7

Product manual:
http://www.hotwater.com/lit/im/com_gas/197727.pdf
Word-search for 'failure'
Low gas pressure. p14 and p54
1-3 trials before declaring 'ignition failure. p48
bad flame sensor (clean with sandpaper) #10 p58
unit must be grounded (check outlet with circuit analyzer) #12 p58
Sequence flow chart p59
Rough starts = ignition failure p60
Troubleshoot chart - ignition failure p62

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

Maybe I am not understanding your problem exactly, but if you have the instant hotwater system installed it should be measuring the temperature of the water in the hot water line and if it drops below the set level it should open the hot water side until the temperature is reached. If it was installed correctly it puts the hot water back into the cold water line so it isn't wasted.

Those dirty crooks, Only kidding. They did the same thing to me a while back, except it was a natural gas heater with lp tank out in the yard, bought it from the gas co who services the tank, found out they ordered a dozen heaters, all of them natural gas. I said to the guy, do these need to be switched over or jetted or something? He says why, I said because it says natural gas only. It worked fine, just smudged black smoke out. He brought out another heater and swapped it out, seems you can't change the burner? Don't make sense. Anyway, I would take it back to the place you got it and say get up the coins, It cost $400 to get the plumber back to hook this thing up!! And we have no hot water. And my shotgun has a hair trigger. I would say it is dangerous enough to get his attention on the matter without going to court. Hope this helps.

16" diameter water heaters could work if you cut away the metal and insulation off of 1 side of the water heater. The actual tank inside the shell is smaller than outside diameter.

American gas water heaters shows a 30gal 16"
model BFG61-30T30-3NOV
http://www.americanwaterheater.com/products/pdf/NRGSS00107.pdf


AO Smith has 16" Promax 30 gallon gas
Model GCV30
http://www.hotwater.com/lit/spec/res_gas/ARGSS01406.pdf

ELECTRIC 6 gallon point of use
http://www.hotwater.com/lit/spec/res_elec/AOSRE50400.pdf

You can get a tankless water heater if you have the additional money and a water filtration and softener system and don't mind expensive repairs if you install it yourself.

By-pass may be faulty. Are you getting good pressure on hot side, even though not hot?

Water level safety shutting down heat source

You will find two covers on the front.Behind each cover the you will find a thermostat ,there will be adail on it. It might be numbers like 120,150 or it might be letters,like A,B,C and so on.You take screw driver and turn to the right until you get the tempture you want.

soetimes its gaskets around flanges and heater element fixings that fail
have a good look round after drying the area with tissue etc.
leave a dry tissue round the based so you will see tell tale trace stains where its perhaps leaking from