Rheem Water Heaters - Recent Questions, Troubleshooting & Support

I was having the same problem untill I reallized it was my venting system. Test the water heater with no vent on top. Disconnect the vent pipe from the water heater and try turning on the hot water. the water heater needs a special adapter to vent the direct vent water heater. One other thing you can check is the gas pressure in your home. You have to have between 7 and 8 WC (water Column) for the tankless water heaters. You can call your gas supplier to find out what you have.

Rheem RTG-66DVN... | Answered Yesterday

Contact Rheem directly and explain the problem you are experiencing.

Rheem Water... | Answered on Jun 10, 2019

Faulty reset/temperature cut out or loose connection at wiring block.

Rheem Water... | Answered on Jun 03, 2019

Have 2 of these Rheem units in my house. Both had this same error code within 30 days of each other. And my neighbor has 2 units as well - and guess what - 2 months after mine stopped working because of the code - so did theirs. It is not something that can be fixed. It is a manufacturer's defect - and it looks like Rheem has yet another class action on their hands (like the one for the RTG - 74 PVN). They need to do a recall to repace these units.

Rheem... | Answered on May 10, 2019

I can't find any information on that MODEL you listed in your question. It's sort of like the Rheem Air Handler models but notthing comes back. In any case you will NEED the SERIAL number, as that will tell you all you need to know about it. If you can't decipher SN, call RHEEM and they can give you the info on that unit. Sorry I could not be of more help.

Rheem Water... | Answered on May 02, 2019

1) Copy following links:
Troubleshoot by type of gas control valve.
Also Scroll up and look on right side for Pressure switch troubleshoot resources.

2) Post question on pro water heater forum:

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Rheem 43VP50E2... | Answered on Apr 29, 2019


Rheem Water... | Answered on Apr 08, 2019

Could be repairable depending upon the problem

Rheem Water... | Answered on Mar 31, 2019

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