Checking Micro-amps
RHFE 201, 263, 431, 556 Series
1. Locate the yellow wire from the flame rod. Disconnect at Molex.
2. Set the meter to read micro-amps.
3. Place the meter in series with the flame rod a the disconnected Molex.
4. Operate the appliance and view the flame development in the view window.
5. Read the micro-amps on the meter for high fire and low fire conditions.
NOTE: Volt meters differ in style and configuration. It is the technician's responsibility to know the tools and how
to set up for operations and testing.
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Rinnai Direct Vent Service Manual