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Rheem RTG2-42 User Manual

Rheem RTG2-42
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SVC 810 Tankless Troubleshooting Manual
49
Error Code 12
Explanation: Flame Failure. Unit went to main burner for a period of time; but has since lost
flame or the ability to verify the presence of flame. At a minimum check the following in all
cases:
1. Bleed all air from gas lines.
2. Ensure appliance is properly grounded.
3. Ensure gas line, meter, and regulator are sized properly.
4. Ensure gas type and gas pressure to the machine is correct.
5. Flex lines with a full 3/4 inch inside diameter may also restrict fuel flow enough to give
you error code 11.
For convenience, the RTG 66 model has a ¼ inch inlet gas pressure check port
on the gas connection nipple.
Natural Gas Pressure
L.P. Gas Pressure
Ad
j
ust inlet
g
as
p
ressure based on fuel t
yp
e.
Does the unit
have proper
inlet gas
pressure?
No
Yes
Adjust burner manifold pressure. See instructions
on page 39.
Is the burner
manifold
pressure
normal?
No
Yes
Check and inspect burner assembly, flame rods,
heat exchanger.
Natural Gas: 4.0” to 10.5” w.c.
LP Gas: 8.0” to 14.0” w.c.
Unit a
pp
ears to be OK. Tr
y
to restart.

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Rheem RTG2-42 Specifications

General IconGeneral
BrandRheem
ModelRTG2-42
CategoryWater Heater
LanguageEnglish

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