
PDX Series
Troubleshooting
LED Status |
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| Status |
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| Failed to light | 1. | Unstable pilot. | 1. Page 14 | |||||||||
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| 2. | Pilot tube blocked or restricted. | |||||||||||
pilot. |
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3. | Oxidation build up on pilot electrode. | ||||||||||||||
second pause | System auto | ||||||||||||||
4. | Wire damage to pilot assembly or bad | ||||||||||||||
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| connection at gas valve. |
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| Pressure switch | 1. | Vent blockage or improper vent configuration. | 1. Check vent or vent tables. | |||||||||
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| or blower temp | 2. | Pressure switch tubing kinked or blocked. | 2 & 3 Page 17 | |||||||||
switch opened | 3. | Faulty pressure switch. | 4. Refer to venting section of | ||||||||||||
during burner | 4. | Vent termination being affected by wind | |||||||||||||
second pause | installation manual | ||||||||||||||
operation. | 5. | Blower not spinning up to speed. | |||||||||||||
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| System auto | 6. | Blower temp or exhaust temp too high | 5. Page 21 | |||||||||
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| resets. | 7. | Faulty blower temperature switch. | 6 & 7 Page 23 | |||||||||
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| 1. | Unstable pilot. |
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| Pilot flame | 2. | Pilot tube blocked or restricted. | 1. Page 14 | |||||||||
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| 3. | Oxidation build up on pilot electrode. |
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extinguished. | |||||||||||||||
4. | Wire damage to pilot assembly or bad | ||||||||||||||
second pause | System auto |
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| connection at gas valve. | 5. Refer to installation manual | |||||||||||||
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| 5. | Insufficient combustion air. | |||||||||||
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| 6. | Gas pressure is out of specification. |
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pilot flame |
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| Replace gas control, | ||||||||||
sensed. | Pilot valve stuck in open position. | ||||||||||||||
second pause | page 27 | ||||||||||||||
System auto |
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| resets. |
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| WARNING: EXPLOSION HAZARD |
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| * Indicates gasoline vapors were detected at potentially |
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Seven flash, three | Flammable Vapor |
| explosive levels. |
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* Verify no gasoline vapors are still present | Page 29 | ||||||||||||||
second pause | Sensor fault | * Reset the control by cycling power to the appliance or | |||||||||||||
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| by cycling the ON/OFF switch. |
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| * Replace the Flammable Vapors Sensor element if a |
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| gasoline spill event occurred. |
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Flammable Vapor | * Verify Flammable Vapor Sensor (FVS) resistance is |
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Sensor out of |
| not below 25 K Ohms. | Page 29 | ||||||||||||
second pause | * Check wiring to FVS and insure it is not shorted. | ||||||||||||||
specification. |
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| * Replace control if everything above checks out OK. |
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| Thermal well | 1. | Damage to thermal well wire. | Page 25 | |||||||||
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| sensor damaged | ||||||||||||
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| 2. | Thermal well sensor resistance out of range. | |||||||||||
or unplugged |
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second pause | Gas valve | 1. | Control needs to be reset. | 1. Interrupt power supply | |||||||||||
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| electronics fault | 2. Replace gas control, | |||||||||||
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| 2. | Control is wet or physically damaged. | |||||||||||
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| detected | page 27 | |||||||||||
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Gas valve fault | 1. | Control needs to be reset. | 1. Interrupt power supply | ||||||||||||
second pause | detected. | 2. | Control is wet or physically damaged. | 2. Replace gas control, | |||||||||||
page 27 | |||||||||||||||
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Page 13
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