Questions & Answers for: Rheem 21 3

Model PTG-74PVP-2 Error Code A0 21. No hot water. check to make sure the air vent is clean and that the front cover is on properly

palaoma ptg-42pvn flashing a1 21 code I have just installed a brand new tankless water heater and its flashing a code. A1 followed by 21. Does anyone know what this code refers to. It is not in the ...

It won't heat and says, 21 and then A1. If the gas is empty, do I need to fill my main propane tank outside? That would be a YES...you need to make sure the tank is serviced and at the proper levels..

My water heater is brand new. Last night was the first time we turned it on. I get a code 21 on the remote. I read that I need to clean the burner and the filter, but being new I can't believe that it

error code 21 A1 error code 21 A1 This means the air intake cover problem. 21 Malfunction of Air Intake Filter Switch Ensure air filter door is properly seated. Ensure front panel is properly ...

Error coding A0 21 resulting in no hot water. check the power supply or the gas line

We are getting error codes (A0 and 21) on our Paloma PTG-74PVN. I'd love a list of what different error codes mean. Also I noticed a reall search, and it seems our unit is listed for recall. Can you ...

Model RTG-42PVP my display is switching back and forth between A1 and 21. Use following link for Rheem tankless troubleshoot: http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html ...

We have a Richmond Tankless water Heater that is flashing between A1 and 21 and not heating the water. Error 21 means the air intake cover problem. Malfunction of Air Intake Filter Switch Ensure air ...

rheem pronto error code 21 A0 Malfunction of Air IntakeFilter Switch Remedies: Make sure air filter door is properly seated. Make sure front panel is properly installed.