Installation Manual
WARNING
Figure 72
Rinnai Tankless Water Heater Installation and Operation Manual 73
5.6 Diagnostic Codes
To display diagnostic codes:
(Up) button
the
03
Power interruption during bath ll
(Water will not ow when power returns)
•
05
By-Pass Flow Control
•
•
10
Air Supply or Exhaust Blockage/
Condensate Trap is Full
• Ensure condensate line is not blocked.
•
no obstructions. (Indoor Water Heaters
• Ensure High Altitude setting. (See
•
•
•
•
11
No Ignition (Heater Not Turning On)
• Check that the gas is turned on at the
•
gas is in the tank.
•
are correct.
•
•
•
• Ensure igniter is operational.*
•
short circuits.*
•
12
No Flame
• Check that the gas is turned on at the
•
gas is in the tank.
•
•
is correct.
•
14
Heat Exchanger Overheat
•
•
scale build-up.
•
•