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I have a rinnai continuum 2520 that runs out of hot water while taking a 10 minute show. What could be the problem.

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SOURCE: My Rinnai 26 sometimes takes 10 minutes to start

This is not an uncommon problem. You may notice this problem particularly if you haven't used hot water for a period of time. The hot water heater is probably working, but there is quite a bit of water that has to clear out of the lines before the hot from the heater reaches your appliance. I suspect that the water heater is doing its job, and that is the assumption I am going off of for my next statement. A recirculation system will work well to eliminate your problem. Again, assuming that the hot water heater is in proper working order. I would do my research on recirculation systems before buying one. Often times you get get a relatively inexpensive unit that will do the job for you.

Posted on Nov 18, 2009

  • 11 Answers

SOURCE: What pump should be used to flush the Rinnai

any utility pump with garden hose connections or a sump pump set up with hose connections. Allow the unit to flush for at least 45min and be sure to clean the inlet screen when done.

Posted on Apr 03, 2010

  • 120 Answers

SOURCE: My Rinnai is only 3 years old and just recently it

The Rinnai relys on good water flow to fire it up. In saying that it runs out of water; thats actually not possible. The Rinnai just heats up water as it goes. Usually fault for installs on bore or well water is a problem with water flow. Causes are blockeed filters or you water pump from the bore starting to fail. I would expect you to have a large filter somewhere on the water line from the well. Try and find it and clean it our. The Rinnai also has a filter. It,s like a plastic round shaped nut just under the heater on the miidle connection. Turn the water off first, it should almost unscrew by hand, take it out and clean it (make sure you don't drop the O ring on it. Also some tapware has water filter right in the end of the spout, check these too. After you tried all this focus on the pump. Make sure no ther water id flowing, try the hot tap and see if it works. Do the same but slowly turn on a cold tap, slowly increasing the flow. Have someone out by the heater and see if the heater shuts down at any point. If it does it could be the water pump at fault. From what you have told me and am certain water flow is the culprit here. Really focus on anything that might lessen the flow before you start messing with the heater. Best of luck.

Posted on Aug 30, 2010

  • 120 Answers

SOURCE: my kids just bought an

Run through the basic checks

  • Power lead from the heater plugged in a socket turned on.
  • Gas on to house
  • All valves below heater in on position.
  • If they have controllers in the house turn on (key pads marked with Rinnai logo in kitchen or bathrooms usually)
There is a turbine that spins in the heater when a hot tap is run. If the heater has been sat for some time not operating the turbine might have stuck. Run the hot tap and keep it running, using a hammer give the centre pipe connection under the heater a firm hit a few times(not too hard). This might unstick the turbine.

Posted on Sep 22, 2010

  • 17 Answers

SOURCE: I have a Rinnai Continuum

clean filter on the cold side coming in and clean or replace the aerator at the sink, rinnai works on water flow, common problem if your water hardness to high or if you have iron in your water

Posted on Oct 23, 2010

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