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International Comfort Products PGMD18G0406 Defrost Sensor Board
The defrost sensor control board controls if and when to commence the defrost cycle which may be necessary to get rid of the frost that collects on the outdoor unit. It looks to a specific sensor that can be found near the condenser, in order to verify when the defrost cycle should begin.
How do you know when your AC defrost sensor board is not working right?
- Your HVAC system will stop working due to the safety issue that the frost poses
- The main control board could display an alphanumeric error code referring to a bad defrost board
- Defrost mode never kicks in especially when there is a rather large amount of frost that makes the unit run like crap
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