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-   -   Gmp open limit light (https://www.askmehelpdesk.com/showthread.php?t=327040)

  • Mar 9, 2009, 02:46 PM
    mc69nus
    Gmp open limit light
    I have a gmp gas heater. It is about 12 years old. The light is blinking 4 times. It indicates that the furnace control checks for an open limit. What does this mean?
  • Mar 9, 2009, 10:44 PM
    hvac1000
    Find the limit control on the furnace and test/check it.

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