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Discussion Starter · #1 ·
We have a lennox hpxa-19 heat pump about 6 years old and when we put it in the cooling cycle it cools for a few mins and then the air heats up. and then after a few more mins the compresser shuts down. there is a blink code of 2 amber blinks when running and when compresser shuts down there is a red fault led. this is our first summer with a heat pump (just bought house) and want to know what to expect for a service bill.

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