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| Form: | 2396 | |
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Code | Description |
| Recommended Troubleshooting of Lockout Codes |
| Code | ||
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| 2. | Replace the stack sensor. |
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| 3. | If previous steps are correct and fault persists, replace the |
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| module |
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96 | Outdoor | sensor | 1. | Check wiring and correct any possible errors. |
| H | |
| fault |
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| 2. | Replace the outdoor sensor. |
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| 3. | If previous steps are correct and fault persists, replace the |
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| module. |
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97 | Internal Fault: A2D | Internal Fault. |
| L | |||
| mismatch. |
| 1. | Reset Module. |
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98 | Internal | Fault: | 2. | If fault repeats, replace module. |
| L | |
| Exceeded | VSNSR |
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| voltage tolerance |
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99 | Internal | Fault: |
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| L | |
| Exceeded | 28V |
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| voltage tolerance |
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100 | Pressure | Sensor | 1. | Verify the Pressure Sensor is a |
| H | |
| Fault |
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| 2. | Check wiring and correct any possible errors. |
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| 3. | Test Pressure Sensor for correct operation. |
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| 4. | Replace the Pressure sensor. |
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| 5. | If previous steps are correct and fault persists, replace the |
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| module. |
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101- | RESERVED |
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104 |
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105 | Flame detected out | 1. | Check that flame is not present in the combustion chamber. | H or L | |||
| of sequence | Correct any errors. |
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| 2. | Make sure that the flame detector is wired to the correct |
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| terminal. |
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| 3. | Make sure the F & G wires are protected from stray noise |
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| pickup. |
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| 4. | Reset and sequence the module, if code reappears, replace |
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| the flame detector. |
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| 5. | Reset and sequence the module, if code reappears, replace |
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| the module. |
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106 | Flame lost in MFEP | 1. Check pilot valve (Main Valve for DSI) wiring and operation - | L | ||||
107 | Flame | lost | early in | correct any errors. |
| L | |
| run |
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| 2. | Check the fuel supply. |
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108 | Flame lost in run | 3. | Check fuel pressure and repeat turndown tests. |
| L | ||
109 | Ignition failed | 4. | Check ignition transformer electrode, flame detector, flame | L | |||
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| detector setting or flame rod position. |
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| 5. If steps 1 through 4 are correct and the fault persists, replace |
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| the module. |
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110 | Ignition | failure | Hold time of recycle and hold option. Will not be a lockout fault. | H | |||
| occurred |
| Hold Only. Internal hardware test. Not a lockout. |
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111 | Flame |
| current |
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| H |
| lower | than | WEAK |
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| threshold |
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112 | Pilot | test | flame | Interrupted Pilot or DSI application and flame lost when system | L | ||
| timeout |
| in “test” mode. |
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| 1. | Reset the module to restart. |
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113 | Flame |
| circuit | Flame sensed during Initiate or off cycle, hold 240 seconds, if | L | ||
| timeout |
| present after 240 seconds, lockout. |
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114- | RESERVED |
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121 |
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| 43 |
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