Question about Rheem Paloma PTG-74PVN / RTG-74PVN Natural Gas Indoor

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What does error code C2 11 mean? - Rheem Paloma PTG-74PVN / RTG-74PVN Natural Gas Indoor

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Code 11 means there is not enough gas

is this a new install?
do you have at least 3/4" gas line to the unit?

Posted on Aug 31, 2010

  • zandar3 Aug 31, 2010

    also, check to make sure nothing is blocking the vent. if you have exhaust gasses coming back through the intake into the unit, it will shut down and give that same code.

  • drdaveyo Aug 20, 2011

    DON'T EVER BUY THIS UNIT.....THEY ARE JUNK

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What is code blinking 20 on noritz tankless hotwater heater N_069M


The error is a HIGH LIMIT THERMAL ERROR. That means Calcium buildup has appeared in the unit. It is also called scale. To clear the error you have to power it off. That is done by the circuit breakers. You should descale the unit first though.

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What does error code 13 mean?


1) Copy following links for Rheem tankless error codes
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
http://waterheatertimer.org/pdf/Tankless-Error-code-13.pdf

2) Maintain water heater as shown in product manual to avoid common error codes.

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1 Answer

Tankless water heater model # RTGL74PVN is blinking 38 what does this mean


Copy following link for general troubleshoot and error codes:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Error code 36 does not show in any resource, including 2008 service manual, or 2012 product manual.
Check that remote control display is illustrating the correct number.
For example there is error code 35.

Oct 19, 2012 | Rheem Tankless Hot Water Heater...

1 Answer

What does code 36 mean


Error code 36 does not show in Rheem tankless manuals.

Copy following link for general troubleshoot and error codes, and Rheem contact information:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Error code 36 does not show in any resource, including 2008 service manual, or 2012 product manual.
Check that remote control display is illustrating the correct number.
For example there is error code 35.

Oct 19, 2012 | Rheem Paloma Tankless Water Heaters...

1 Answer

Rheem model 41vrp40n flashes twice and stops working


Error code means that you have electronic gas control valve.

Copy following link to identify gas control valve, read error code meanings for each, and download service manual relevant to each gas control, but not specifically Rheem since rheem does not post service manuals.
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

The fact that water heater restarts, means that water heater is getting gas, getting sufficient air for combustion, thermister is ok, gas pressure is good, etc.
The fact that you unplug and replug water heater and it works, shows that you have power vent model.
Since water heater worked correctly before, 2 flashes with Rheem power vent model could mean that pressure switch has failed.

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1 Answer

My water heater shows error code c-4 it starts for 3-4 min then stops. what does this code mean?


Before calling service technician, open following link for Rheem error codes, chat, and possible solution:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Error codes are start-point for troubleshooting.
C4 11 can mean no ignition:
Simple solution for this problem can be to clean burner and combustion parts including sanding any carbon deposits off of iginiter.
Other simple things can be loose wiring on gas solenoid, or improper grounding, or low gas flow or gas pressure.
Other causes can be bad gas solenoid, bad igniter, misaligned ignition parts and sensor, bad igniter wiring.

As you know from reading your product manual, tankless require yearly service. This service can prevent many common error codes before they happen.
Typical do-it-yourself maintenance can be accomplished using following pdf
http://waterheatertimer.org/pdf/Tankless-maintenance.pdf

Sep 16, 2011 | Rheem Paloma PTG-74PVN / RTG-74PVN...

1 Answer

No hot water error codes 76, C4,C7


Before calling service tech, open following links for Rheem troubleshoot resources including rheem chat, error codes, possible maintenance and service manual.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Error codes are considered start-point for troubleshooting.
Multiple error codes can mean PC board failure.
http://waterheatertimer.org/pdf/Rheem-error-code-C7-76.pdf
http://waterheatertimer.org/pdf/Error-code-13.pdf
http://waterheatertimer.org/pdf/Tankless-maintenance.pdf

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1 Answer

Remote is flashing C8 and 76, alternating. I turn the unit off, then back on, and I get hot water for about 10 seconds, then it goes cold and the same error message occurs. Unit is Rheem Main Remote...


Before calling service technician, open following links for Rheem tankless resources including error codes and Rheem chat.
Disconnect wires from remote to see if system stabilizes. Unit will heat to default temperature without remote.

Error codes are considered start-point for troubleshooting.
C8 76 can mean PC board failure.
76 can mean communication failure with remote control
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
http://waterheatertimer.org/pdf/ErrorcodeTroubleshooting.pdf
http://waterheatertimer.org/pdf/Rheem-error-code-C7-76.pdf

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1 Answer

Getting error code 16. what does it mean and what


a 16 error code is typically caused by scale formation. I'd recommend performing a descale on the heater.

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1 Answer

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 installed.
Error codes here: http://www.palomastore.com/paloma_error_codes.html

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