Question about Rinnai Heating & Cooling
Thermocouple has 2 leads coming off the probe
That unit has a 5 year warranty on the parts that you are talking about. The unit also is proprietary and you have to contact them for service.
Posted on Mar 31, 2014
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Posted on Jan 02, 2017
found that the pilot tube had dust bunnys in mine so blew it out with a air can i had for the computer now the pilot light stays on just fine
Posted on Feb 09, 2010
Yes this is probably the thermocouple connection.
Just remove the end of the thermocouple from where is goes into the gas valve and leave the end that goes into the flame in place.
Clean the end of the thermocouple connect by scraping off just a little metal from the end just about there the nut tightens the thermocouple into the gas valve. After you have exposed some new metal do the same inside the valve where the thermocouple seats into the gas valve.
Use a small pic or similar item to scrape inside the gas valve to expose some new metal there also.
Now reassemble the thermocouple into the gas valve and see if the heater works.
Here is a link with some more instructions.
Posted on Oct 10, 2010
The thing with these is over the summer months when they are not in use they get dust inside the ODS safety pilot. When that dust gets in there it cuts down on the oxygen inside and the safety simply shuts down because it was designed to do that. What you need to do is flush the pilot and allow it to dry. I use a product caller but you could use shop air or even a soda straw to blow out the pilot. I used to sell these thermocouples for ODS systems and they are not cheap. Most times they do not solve the problem either because the pilot is dusty. A brand new one won't solve your problem and a cheaper thermocouple don't work on these. More HERE
Here is the whole thing for $52 not a bad price
The thermacouple alone for these cost nearly as much by itself.
Posted on Dec 24, 2010
The pilot flame must touch (burn) the tip oqef the t-couple to hold the magnet in the gas value open.make sure the pilot orifice (hole) is clear.the pilot pressure (in the tube) is factory set full open & can only be adjusted down (less). Also check the gas **** didn't get closed or turned half way.? Assuming its not the t-couple. If all is good & it still won't stay on. Replace the gas value.!
Posted on Sep 21, 2011
Had a water heater once that after several new thermocouples found out it was the actual valve itself. fortunately the $198.00 valve was under warranty the factory rep said too often people over tighten the thermocouple into the valve crushing the magnet inside and it destroys the whole valve
Posted on Oct 25, 2011
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