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Haier CPN10XH9 Defrost Sensor Board
The defrost control board controls when to launch an important defrosting cycle which aids to keep your outdoor unit from plugging up. The defrost sensor board depends on a sensor that can be found near the condenser, in order to make the decision on when to begin.
Warnings of a faulty defrost sensor board
- AC and heating system could cease to operate due to the fact of way too much frost build-up
- The main circuit board could throw an error number if the defrost board fails
- Self defrost sequence has not run for a while even though there is excessive frost on the external unit
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