Navien CR210A Tankless Error Codes - Plumbing - DIY Home Improvement | DIYChatroom

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing


Thread Tools Display Modes
Old 10-06-2012, 06:20 PM   #1
One-man DIY Army
Join Date: Jun 2006
Location: Seattle
Posts: 34
Rewards Points: 25

Navien CR210A tankless error codes

I need some advice from someone with experience with Navien tankless water heaters.

Unit was working flawlessly, then hot water starts dying. It gives me an error code 38, and code 12.00. The 38 means abnormal circ pump error. What does the 12.00 mean?

The troubleshooting guide tells you to: 1) Check the cold water supply -- checked & cleaned out the cold water inlet filter, 2) Check the circ pump & 3) Check the water flow sensor.

So do I replace the water flow sensor or the circ pump? Anyway to troubleshoot this?


mdalli is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Navien CR-240a tankless water heater issues PoWn3d_0704 Plumbing 20 05-07-2013 06:09 PM
condensing tankless water heater: navien, noritz, bosch rny1diyc Plumbing 0 09-07-2012 04:48 PM
Navien Tankless 210A keeps shutting off kenithbrennan Plumbing 0 06-29-2011 07:47 PM
Navien Tankless Water Heaters Lutz Plumbing 3 06-14-2011 02:15 PM
Tankless water heater Navien cr-210 ? dotmatrix Plumbing 40 09-13-2010 09:29 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1