Rinnai E75CN Instructions D'installation Et De Service page 66

Inspection glass figure 38
13.4 Warranty
66
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Visual inspection of the flame
The burner must flame evenly over the entire surface when operating correctly. The
flame must burn with a clear, blue, stable flame.
Check the flame through the inspection glass in the ignition probe (fig. 38).
The flame pattern should be as shown in the figures below.
SATISFACTORY
Ignition probe
UNSATISFACTORY
Ignition probe
Further checks:
- Inspect the pressure relief valve
- Clean the water filter in the return pipe
- Check the pH of the water or glycol/water mixture.
Verify proper operation after servicing.
For warranty conditions refer to the warranty card supplied with the boiler.
blue flame
yellow flame