TROUBLE SHOOTING
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.
| PROBLEM |
| CAUSE |
| REMEDY |
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3. | a. No power to heater. | a. Check circuit breaker | |||
| powered, Unit does | b. Manual reset | b. Manually reset hi- | ||
| not operate. | c. | tripped. |
| limit. Determine |
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| Vent fan interlock not |
| cause. If | |
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| proving (if auxiliary |
| again, call service. |
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| power vent or | c. Turn on fan, check | |
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| Vent system) is |
| switch. |
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| being used. |
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2. | Unit energized, | a. Fan defective. | a. Check, replace fan. | ||
| blower not operating, | b. Fan relay defective | b. Check, correct. | ||
| pump not operating, |
| or wiring | c. | Check, clean air filter |
| burner(s) not on. |
| disconnected. |
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3. | Unit energized, | a. Igniter Defective | a. Replace igniter or | ||
| blower and pump | b. Water flow switch |
| call Service | |
| operating, burner(s) | c. | not proving. | b. Check, replace flow | |
| are NOT on, ignition | Air flow/flue |
| switch. | |
| control LED flashing. |
| blockage switch not |
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| c. | Clear flue. Repair or | ||
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| proving. | ||
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| replace switch, | |
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| d. | Control relay(s) |
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| d. Call Service | |||
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| defective. | ||
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| e. Call Service | ||
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| e. Control sensor(s) | |||
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| f. | Call Service | ||
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| defective. | ||
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| g. Call Service | ||
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| f. | Control board | ||
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| h. Check, replace flame | |||
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| g. | defective | ||
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| Ignition control |
| sensor | |
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| defective. |
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| h. Burner flame not |
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| proving |
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4. | Unit energized, | a. Pump defective | a. Call Service | ||
| blower on, pump not | b. Relay defective | b. Call Service | ||
| operating, burner(s) |
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| NOT on. |
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Note: For service and/or parts call your authorized service agency or the factory @
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