TM
Installation & Service Manual
13 | Troubleshooting (continued) |
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Table 13D Troubleshooting Chart - Noisy System |
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FAULT |
| CAUSE | CORRECTIVE ACTION | ||
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| - Supply gas problem. Natural gas pressures |
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| should be between 4 inches w.c. and | • Refer to Section 7 - Gas Connections for detailed | ||
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| 14 inches w.c. | LP gas pressures should | ||
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| be between | 8 inches w.c. and | information concerning the gas supply. | |
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| 14 inches w.c. |
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| • Refer to the Gas Valve Adjustment Procedure on | |
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| - Gas/air mixture problem. | page 69 of this manual for the proper gas valve setting. | ||
Noisy | Verify that the vent/air intake lengths do not exceed the | ||||
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| maximum listed in the General Venting section. | |||
Operation |
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| • Refer to page 56 in this manual for the burner removal | |
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| - Dirty/damaged burner. | and inspection procedure. Clean or replace the burner | ||
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| as necessary. | |
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| - Low water flow through the heat exchanger. | • Refer to Section 6 - System Piping for minimum flow | ||
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| rates. | |
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| - Air in the piping system. | • Properly purge all air from the piping system. | ||
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| - Blown fuse. |
| • Replace fuse F5 on the control board, see page 58 of | |
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| this manual. | ||
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No Pump |
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- Faulty pump. |
| • Replace pump. | |||
Operation |
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- Faulty pump relay. | • Replace pump relay. | ||||
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| - Internal fault on control board. | • Replace main control board. | ||
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Relief Valve | - System pressure exceeds relief valve | • Lower the system pressure below the 150 PSI rating of | |||
Opening | setting. |
| the supplied relief valve. | ||
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