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International Comfort Products H8MPL100J20A1 Ignition Control Board
The purpose of the ignition control board is that it may control the main gas intake valve, the ignition timing and some other sensors. The ignition control board was always an important safety device that some manufacturers have decided to blend to be a piece of the main circuit board for enhanced safety.
Indications the major ignition board is in dire need of a replacement
- HVAC ignition system refuses to launch no matter what
- Signal from main thermostat never does reach the control board
- Every other thing attached to the system checked out to be in good condition
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