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13 LIMIT
SWITCH LOCKOUT - Indicates the occurrence of 10 successive
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limit trips
during high heat
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or three
successive limit trips during low heat. Auto reset after three hours.
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Check for: -
Improper or misaligned limit and/or limit shield.
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- Improper high
or low heat gas input adjustment.
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Stuck high heat
solenoid in gas valve.
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14 IGNITION
LOCKOUT - Control will auto-reset after three hours. Refer
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to #34.
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21 INVALID
MODEL SELECTION - Indicates model plug is missing or
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incorrect. See
wiring diagram
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for correct
connector jumper location.
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