Chris for Model Number FAZ12HS2A Fridgidaire Combo Heat/Cool Window Unit. FAZ12HS2A Unit works fine on A/C and Fan Mode, but when it set in heat mode, display shows error code H5. You can change the temp. up and down on the display, but will come back to H5 code and no fans or anything will work. Change mode back to A/C, compressor fires up and fans come on just fine.
Answer Chris, This issue with the HS would be a fault with the heater on the unit and would need to replace part number 5304459934 heater assembly. Read More... Answered by AppliancePartsPros.com | Wednesday, January 21, 2015