I just installed heater works but starting water temp is only 46 deg. (Cold) And I can't seem to get water heater to 100 Degrees. Any suggestions?
1441407
You will have to turn the volume of water down. Install a gate valve before the heater and turn it half closed. These are great little units but if the incoming temperature is low they don't have enough btu's to raise the temp that much. Hope this helps.
2177966
I sent it back, it didn't work well at all! I tried for several days to adjust the high and low temperature settings, but when then heater was on it wouldn't shut off and it would overshoot and when it was off, it wouldn't turn back on. I had it in a 10 gallon tank. UL....??
958037
Water doesn't get hot, at least not on mine. I've only used it a couple of times so far. Sorry can't be of more help. Carol
1457542
It's on Celsius and Farenheit, check again ;) (I got this heater on my tank and I know). Btw I recommend it.
1490509
There is a dial at the bottom of your h2o heater it's very self explanatory just turn it toward the hotter setting
1292512
If memory serves you adjust the temperature with the bottom handle. You have to push that button inward and turn the handle counter clockwise...if this doesn't work make sure the water hoses behind the unit are connected to the correct pipes. Hope this helps.
1707159
Michael, I have unfortunatly purchaed 2 of these heaters. One serviced for 3 seasons and it will not work now. the other developed the same problem in 4 months of regular use. I do not think they will make 140 degrees at any rate.I suggest you up size to another unit to met your needs, cheaper is not always better.The good news is I can work on this type of heater and have positive communication with the Marey tech. support for parts.Ric
609531
yes, after awhile, the sensor in the temp probe goes bad. It reads the water temperature at lower than it really is and thus the heater overheats. You can adjust downward the temperature to compensate, BUT THE SETTING RESETS TO 79 F EVERY TIME THERE IS A POWER FAILURE so you could end up overheating your tank anyway. Avoid. Right now, 79F setting for me = 89F actual water temperature!
1505894
I have incurred the same issue. What has worked for me is before turning unit on, make sure the heater and temp control are off. Once the fan starts moving, then turn on the heat and temp.
2103732
More important than how big your home is would be how close is the tankless heater to your point of use and how cold is the incoming water? I live in Florida, so the water is never very cold which helps the heater to work very well for me. If your incoming water is colder than 55*F, I would recommend a bigger unit than the N120.
621539
Mine is only about 6 months old, but I run mine at 91° and it has worked great so far. Maybe check that it is installed according to specifications? Or you may have a defective unit.
2177968
I sent it back, it didn't work well at all! I tried for several days to adjust the high and low temperature settings, but when then heater was on it wouldn't shutoff and it would overshoot and when it was off, it wouldn't turn back on. I had it in a 10 gallon tank. UL....??
2080265
My measurements and calculations predict that the water around this 50 W heater will freeze at about 11°F. If you want to prevent freezing to lower temperatures, replace the heater with the 80W version, Model 9001. I would expect that one to work to -2°F.
1996710
I had a heater like yours and it did not run it. I was so disappointed with the unit, I sent it back and received a refund. BTW, it's made in China.
429668
The instructions that come with it are very good. You can find a video on youtube to help you out more. MAKE SURE YOU UNPLUG THE WATER HEATER BEFORE DOING ANYTHING!!!
880120
My water heater receives a cold water supply of about 40 degrees, than produces HOT water @ about 140, depending on the distance between the heater and the shower (travel time) you should do fine.
53617
I found that the unit is totally unreliable, the heater will not hold its temp,I seen up to an 8 degree variation and lost 2 clutches..I stopped using it..good luck!