operational checklist
COMPLAINT | CAUSE | REMEDY | ||
USER | SERVICE AGENT | |||
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| Thermostat set too low. | Set thermostat dial to a higher |
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| temperature |
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*Water not hot enough | Upper and/or lower temperature |
| Check continuity and resistance (Ohms) | |
| Call service agent | of upper and lower temperature probes. | ||
| probe out of calibration. | |||
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| Replace probes if out of specification. | ||
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| Thermostat set too low. | Set thermostat dial to a higher |
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| temperature |
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| Upper and/or lower temperature |
| Check continuity and resistance (Ohms) | |
| Call service agent | of upper and lower temperature probes. | ||
*Insufficient hot water | probe out of calibration. | |||
| Replace probes if out of specification. | |||
*See WATER TEMPERATURE |
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Main manual gas shutoff valve | Open main manual gas shutoff |
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CONTROL WARNING (on page |
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partially closed. | valve to fullest extent. |
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12). |
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Heater too small for demand. | Space usage to give heater time |
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| to restore water temperature. |
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| Heater recovery is slower. | Call service agent | Check gas input. If incorrect, adjust gas | |
| pressure or replace burner orifices. | |||
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Water temperature too hot. | Thermostat set too high. | Set thermostat to a lower setting. |
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Heater makes sounds: sizzling. | Condensation on outside of |
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tank, normal. |
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| Sediment accumulation on | Drain a quantity of water through |
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Rumbling. | drain valve. If rumbling persists, | Delime heater. | ||
bottom of tank. | ||||
| call a service agent. |
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Ticking or metallic sounds. | Expansion and contraction - |
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normal. |
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| Air chambers in piping have | Drain piping system and refill. |
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Pounding. | Heater must be off while this is |
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become waterlogged. |
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| being done. |
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| Too much primary air. | Call service agent. |
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Combustion noises. | Overfired heater; Incorrect |
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burners or orifice for type of gas | Call service agent. | Check and correct as necessary. | ||
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| used. |
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| Drain valve not closed tightly. | If drain valve cannot be closed |
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| tightly, replace. |
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| Possible condensation if tank | Increase tank temperature |
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| setting (have service agent add |
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| is undersized or stored water is |
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Water leaks. | a mixing valve if setting will be |
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below 110 degrees. |
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| above 120 degrees). |
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| If leakage source cannot be | Shut off gas supply to heater | Repair or in case of suspected tank | |
| corrected or identified, call | and close cold water inlet valve | leakage, be certain to confirm before | |
| service agent. | to heater. | replacing heater. | |
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| Shut off gas supply to heater | Check for sooted flue passage. | |
| Heater is over fired | Check for obstructed vent line. | ||
| and call a service agent. | |||
Gas odors. |
| Check backdraft or lack of draft | ||
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| Possible gas leaks. | Shut off gas supply to heater |
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| and call gas company at once |
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