Rinnai does not kick on when I am running water from shower
The rinnai does not kick on when I am running water from the shower heads, Is this a problem with the flow sensor? and if so, how can I fix it? Also, is there a way to increase the temperature of the water, I can only get it to go up to 120
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Re: rinnai does not kick on when I am running water from...
Try checking the filter on the cold water side of the inlet. it should be a black knob unscrew it and make sure you have it cleaned out good. If it is cleaned out good make sure that your shower head is cleaned out good as well. the flow sensor hardly ever has problems because that filter keeps everything out of it. why do you need it hotter then 120?
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Do You know if there is an anti scald valve in the shower valve? If so it may be scald up with corrosion and need replaced! To see if this could be the problem, flush the toilet next to the shower while the shower is running. If temperature changes in shower I would say that is your problem! If You need to replace it, it would be cheaper to do it yourself! They should be videos on Youtube on how to do it! Good Luck! Regards!
if it has been constant from instalation it might be that ur shower head is rated too low to get enogh gpm ( gallons per minute) it will tell u most of the time around the shower head where it threads onto the spot of the wall what the gpm is. alot of the energy saver heads are restricting tehgpm to 1.5 or .5 gpms to conserve water well the water heater will only operate correctally around .5 gpm depending on model so if u are not pulling enough water u will not turn the water heater on to get ur hot water all the time so go to lowes ( or locally trusted hardware) and get a new shower head make shure u look for the gpm on teh head and check in ur owners manual to see what gpm ur water heater kicks on
P.S. if ur shower head is rated at higher gpm say 1.5 and it is corroded or pluged up say with lime it is going to restrict it causing a lower gpm
A fault often found with these units is due to insufficient water flow. Usually this causes specifically the shower to run hot and cold. Try turning on more than one hot supply; if this fixxes the fault you will need to try and increase water flow. Most new tapware/showerware have water flow restictors built in. These are the cause of many problems with continous flow heaters such as the Rinnai. In taps they are usually located in the spout if it unscrews. In showers try the shower hose. Find them and take them out. Also make sure your mains supply to the house is on full.
There are more technical faults but this is something you can easily try first.
Be aware that the Rinnai relys on good water flow to operate, especially in summer (bit complicted to explain why, just trust me). You need to make sire that any water filter are spotless. The Rinnai has a filter just above the mains water in tap (centre pipe) Turn the supploff first and remove it and give it a good clean.
you can get it off the rinnai web site they have a spot on there to get the internet manuel,, but from what you are saying you may need to adjust the thermostat, or the temp, remember even though you will have endless hot water it still takes the smae amount of timed for the hot water to get to your faucet,, not only that make sure your shower heads aren't holding back to much water pressure, if you don't have enough water going thru the unit it will not stay lit, if will come on and go off, judt to dstisfy the unit,, make sure the filter is clear, on the cold side there is a cap screw if you take it off there is a screen in side you just pull it out and clean it and reinstal it,,
check the screen on the cold water intake on the cold side,, you might have to flush the system out, and do you have the shower head water restricter in, if not you may be using to much hot water,,, how many other hot water fixtures are running at the same time? try running just the shower,,,if this is a tank water heater the dip tube could be bad that is on the cold side it takes the cold water to the bottom of the tank and forces the hot water out,, if you ar only getting a couple of min of hot water and the dip tube is bad it is not going to the bottom but just at the top and not getting all the hot water you will need a plumber
II would think that the unit is going out on hil imit because there is not enough psi on the water coming in.Is this unit on well water or city?If it on well water you have run some cleaner in it every six months.L on the side of the heat or inside and there a toll free number to call talk to a tech.
Could be the water supply into the heater after the cold supply to the house has frozen up. Sounds like an ice block has moved down the pipe before the heater while the water to the shower was flowing and then got lodged in an elbow blocking the flow.
where the pipes are laid out it may run along an outer wall and the cold weather is cooling the water before it gets to the shower try to track the pipe from your water heater to your shower and insulate it where it is coldest