I bought this defrost heat pump controller and it lasted about 11 months. I’ve seen several reviews stating the same problem. The warranty replaced the item, but the coil thermistor went out after a month. The coil thermistor is essential for defrost to be triggered,yet the quality of coil thermistor supplied is not there for some reason or other. Honeywell cheap out on coil thermistor made in Mexico. Someone got a kickback or payoff to use a cheap coil thermistor! My central heat pump would work great if defrost boards would work as intended.
Verified purchase: No
Will work with many systems.
Verified purchase: Yes | Condition: New
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