Question about Rinnai Water Heaters
Rinnai RIN160E24 is too hot! The water in the house we just bought is scalding-hot. Thermostat dial reads down to 40 but will not turn below 60. Any ideas? Thanks!
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Posted on Jan 02, 2017
Its A Possibility The Left Over Water In The Hot Is Frozen. If Your Line Is Exposed Outside Somewhere It Can Easily Freeze Up. Turn On The Hot Water Everywhere In The House And If Accessible Check The Lines To See Where The Warmth Ends. You Can Leave One Off Over Night In Hopes That It Will Eventually Defrost.
Posted on Jan 16, 2009
SOURCE: water is no longer hot
probably the thermostat ,also this could be your dip tube broke (burned) off! this tube takes the incoming cold water and sends it to bottom of tank! so only the hot water comes out the top...if broke, the incoming water mixes in the top of tank and presto! lukewarm water.. also I want to point out, as a plumber of 25 years, replacing estimated 200 plus tanks..that the average lifespan of tanks seem to be 11 years....really! so don't spend too much money on this one ! John
Posted on Apr 07, 2009
You need to first make sure is the tankless who do the “up and down”! . If the problem manifest on more then one faucet then the problem is the unit. Have a thermometer (we use a infrared gun wich we train on Hot water pipe !) and see if actually the unit is the culprit.
If the problem is only on one shower It is possible also to be a “antyscalding valve” If the trigger valve on your shower is being adjusted too low then it trigger a splash of cold water now and then on regulate intervals. Try to adjust the temperature lower at the unit (say 110F ) and see if the problem change. If it does, then the problem is for sure in the faucet. If it does not change , then you have a problem with the water flow sensor . It is simply getting stuck. Bad bearing or even a piece of Teflon tape. I believe you will need a certified technician for that so no issues with your warranty will appear.
Posted on Jan 13, 2010
SOURCE: Hot water does not last long.
probably has a bad heating element. May be a little limed up also. Drain the heater and replace the elements. Take a special tool to remove and replace the elements. ( fairly cheap) You can probably get the elements and parts at a good hardware store. The people at the store probably will explain to you how to replace them. Feedback please if this was of help
Posted on Feb 20, 2010
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