Topics / HVAC
HVAC
3 article(s) on «HVAC». Sorted by severity — most severe first.
MajorModel 3Model Y
900-2000 USDTesla Model 3/Y no heat in winter: 2021 heat-pump problems, PT-sensor recall, fixes (2026)
Why early 2021 Model 3 and Model Y refresh cars lose heat in heavy frost: PT-temperature-sensor failures in the heat pump, octovalve / supermanifold mechanical issues, the Tesla service-bulletin replacement of three PT-sensors, and what the firmware updates closing 'stuck' valve positions actually do. Symptoms, repair scope, typical cost.
RWDAWD
3 shop(s)Open
MajorModel 3Model Y
1000-1200 USDModel 3/Y pre-refresh: cabin PTC heater failure
A frequent failure of the pre-refresh PTC heater (aggravated by a clogged filter and constantly running at maximum).
RWDAWD
3 shop(s)Open
MediumModel 3Model Y
350-1800 USDM3/Y: AC compressor failure (Hanon vs Denso, replacement and recharge)
The electric AC compressor on Model 3/Y dies from overheating, clogged condenser and wear. Hanon vs Denso, signs of failure, prices for new vs used in Belarus.
RWDAWD
4 shop(s)Open