Toshiba Mmy-map1004ft8-e Service Manual [BEST]

Outdoor unit runs, but indoor units blow cold air when set to heat. Manual Solution: The logic flowchart shows that the 4-way reversing valve needs 30 seconds to shift. If not, the manual instructs how to manually energize the solenoid using the "Test Run" function (bypassing the main CPU) to confirm valve function.

This unit is designed to connect to Toshiba Multi outdoor units. Proper pipe sizing is critical for the 10.0 kW capacity. toshiba mmy-map1004ft8-e service manual