Service Manual
3 Troubleshooting
Table 3G (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Boiler Interface
FAULT | DESCRIPTION |
| CORRECTIVE ACTION | |
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Flame Out of |
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Sequence 1 |
| • Check supply voltage for proper polarity. | ||
(will require a manual |
| |||
The flame detector 1 circuit is seeing a flame | • Check external wiring for voltage feedback. | |||
reset once the condition | ||||
has been corrected. | signal while no flame is present. | • Check the internal wiring for bad connections. | ||
Press the RESET button |
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on the SMART TOUCH |
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display to reset.) |
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| |
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Flame Out of |
| • Check combustion of burner 1 and adjust valve 1 if | ||
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| necessary. | ||
Sequence 2 |
| • Check supply voltage for proper polarity. | ||
(will require a manual |
| |||
The flame detector 2 circuit is seeing a flame | • Check external wiring for voltage feedback. | |||
reset once the condition | ||||
has been corrected. | signal from burner 1. | • Check the flame rod and make sure it is clean. | ||
Press the RESET button |
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| • | Check internal wiring for bad connections. | ||
on the SMART TOUCH |
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| • | Remove and inspect the burner. | ||
display to reset.) |
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| • Inspect flame rod 1 and associated wiring for damage | ||
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| and connection. Reference page 34 of this manual for | |
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| removal and cleaning procedures. Replace if necessary. | |
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| • Check for proper electrical grounding of unit. | ||
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| • Check incoming supply gas pressure. Natural and | ||
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| L.P. gas pressures should be between 4 - 14 inches w.c. | |
Flame Failure |
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| (1.0 - 3.5 kPa). Refer to Section 6 - Gas Connections of | |
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| the Crest Installation and Operation Manual for detailed | ||
Running 1 |
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| information concerning the gas supply. | |
(will require a manual | The unit was running and lost the flame | • Verify that the plastic hose from the gas valve to the air | ||
reset once the condition | ||||
has been corrected. | signal. |
| inlet is connected and is not damaged. | |
• Verify that the vent/air intake pipes are installed correctly | ||||
Press the RESET button |
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on the SMART TOUCH |
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| and there are no obstructions. | |
display to reset.) |
| • Inspect flame sensor and associated wiring. Reference | ||
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| |||
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| page 34 of this manual for removal and cleaning | |
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| procedures. Replace if necessary. | |
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| • | Check combustion. | |
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| • Inspect the burner. Reference page 34 of this manual for | ||
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| removal and cleaning procedures. Replace if necessary. | |
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