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Be the first to answer11/18/2017 7:20:01 AM •Rheem Tankless...•Postedon Nov 18, 2017•Be the first to answer
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most likely a flame sensor problem.remove fl sensor , clean with steel wool or fine emery cloth,replace and it should solve yor problem
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7/29/2012 5:24:34 AM •Rheem Tankless...•Answeredon Jul 29, 2012
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Rheem Tech support recommends using default of 20 for both is old settings can not be retrieved from old PCB. Had the same issue and factory settings work well. Also in Lafayette
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11/3/2010 6:04:42 PM •Rheem Tankless...•Answeredon Nov 03, 2010
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Here is the manual. See instructions on page 2.
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12/8/2009 10:00:50 PM •Rheem Tankless...•Answeredon Dec 08, 2009
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Here is the link to the service manual for your tankless water heater:
http://globalimageserver.com/fetchDocument.aspx?id=14564cf7-cd7b-4814-9e1f-4fea34c7b30c
See page 35 for specifics regarding dip switch settings. If you have problems with the link, post again and I will publish it on my company website for you to review.
Richard Johnson
EMSHVAC, Inc
[emailprotected]
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8/22/2009 7:34:01 PM •Rheem Tankless...•Answeredon Aug 22, 2009
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The C4 is a sequence number, there should be a series of numbers that flash after the C4, what is that number?
If you want to see the entire error code list for the Rheem tankless hot water heaters, it can be found at this link:
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8/22/2009 6:18:50 PM •Rheem Tankless...•Answeredon Aug 22, 2009
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Most likely problem is the flow sensor on the inlet and/or outlet pipe. It measures flow to ensure minimum flow before the unit lights. Sometimes they stick or go bad resulting in the control thinking that there is no water flow. Depending on where you purchased it, it may still be under warranty. Call your installing contractor.
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8/22/2009 4:19:50 AM •Rheem Tankless...•Answeredon Aug 22, 2009
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check wiring
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1/1/2023 2:31:26 AM ••Answeredon Jan 01, 2023
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I can find nothing on this error message. There are troubleshooting tips, but you may need to contact Rheem Support direct.https://www.google.com/search?q=rheem+propane+pool+heater+troubleshooting..
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11/21/2021 12:52:27 AM ••Answeredon Nov 21, 2021
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check filter if ok check pressure switch
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8/5/2021 6:10:50 AM ••Answeredon Aug 05, 2021
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Find your manual and see if it will give you the information https://www.masterspas.com/hot-tub-owners-manuals
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5/1/2020 6:00:50 AM ••Answeredon May 01, 2020
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Current time of day; system message, not an error
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5/17/2019 7:20:24 PM ••Answeredon May 17, 2019
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Be the first to answer5/10/2019 11:49:36 AM ••Postedon May 10, 2019•Be the first to answer
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Be the first to answer9/22/2018 2:25:38 AM ••Postedon Sep 22, 2018•Be the first to answer
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Be the first to answer5/29/2018 4:40:02 AM ••Postedon May 29, 2018•Be the first to answer
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Check for debris near igniter. You may have gotten it wet. I don't know the model but you will either have a snap sound every few seconds or it will have a heater element that glows bright red when starting .
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5/29/2018 4:39:12 AM ••Answeredon May 29, 2018
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Be the first to answer5/4/2018 3:31:39 AM ••Postedon May 04, 2018•Be the first to answer
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Be the first to answer2/18/2018 5:42:25 AM ••Postedon Feb 18, 2018•Be the first to answer
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Be the first to answer11/18/2017 7:16:44 AM ••Postedon Nov 18, 2017•Be the first to answer
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Be the first to answer11/18/2017 7:15:32 AM ••Postedon Nov 18, 2017•Be the first to answer
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