My Hayward Heat Pump won't heat the water. Temp setting at 95 ambient temp is 85-90. Warm air coming out of the top of the heat pump. Cleaned pool pump filters, cycled the power, cleaned evap coils with a water hose from the inside. Heat pump is running and no code alarms in. Any other suggestions?
Warm air coming from the top while compressor is functioning would suggest a freon leak.  I am sure you hear the fan functioning, but is the compressor running.  If so possible freon leak.  If fan running but not compressor, than you have a compressor issue.
It could just be a bad run capacitor for the compressor.
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