Blueridge BMKH E1: compressor high pressure protection

What Does Error E1 Mean?

Blueridge assigns E1 on this range to compressor high pressure protection. The control has stopped the compressor because pressure on the high side reached a limit, which is a protective action rather than a component failure. Applies to: BMKH floor-ceiling indoor units This meaning comes from the code table in the Blueridge BMKH floor-ceiling manual dated December 2023. Blueridge publishes different tables for its other indoor styles, and E1 on another manufacturer's ductless equipment routinely means something unrelated, so match the model plate before using this page. Owner-safe checks: Record whether the code appeared in cooling or in heating, and the outdoor conditions at the time. | Clear stored items, planting, and debris away from the outdoor cabinet so air can reach and leave the coil. | Check the indoor filter and the space in front of the unit, and confirm the fan is not left on its lowest setting. Qualified technician: Pressure measurement requires gauges on service ports and belongs to a certified technician. | Do not restart repeatedly against a protection code, because each attempt drives the system back toward the limit that stopped it.