Question about Rheem Paloma PTG-74PVN / RTG-74PVN Natural Gas Indoor
Before calling service technician, best way to approach this problem is to contact Rheem with your specific model and serial number.
Error codes are starting place for troubleshooting.
C2 11 is gas and ignition related.
The same symptoms on your tankless unit can have different cause and solution than another tankless unit.
The burner might need to be cleaned.
Undersized gas meter, or low gas pressure should be checked.
Air in gas line.
Short circuit in gas solenoid.
Igniter wiring harness.
Tankless is not grounded.
Vent exceeds allowable height or length limit
All gas water heaters require periodic maintenance.
The manual is a good place to start for advisories and troubleshooting and required maintenance.
Tankless water filter should be cleaned monthly, and heat exchanger de-limed yearly.
Upvote the help.
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Posted on May 19, 2011
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Posted on Jan 02, 2017
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