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Are you saying burners are going on and off?
OK so heat pump package?
This is a heat pump. If unit works fine in cool mode you have a failing (sticking) TXV metering device on the coil
What happens is in call for heat the metering device does not open to allow refrigerant through so unit is shutting down by pressure switches,
You have two.One for cool and one for heat.
You will have to have refrigerant gauges, a recovery machine,welding rig and a vacuum pump to recover the refrigerant sweat old txv out, new one in, evacuate system and recharge
Most all TXVs are made in Mexico or China these days and failure is way too common. How old is unit? May be able to get replaced under warranty
How old is unit?
THis should be covered from installer under warranty.
TXV is only about 65 bucks if you had to pay for part but labor to replace may be a couple hundred.
But yes, part should be covered
If you have further questions, please let me know.
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