Panasonic CU-E18CKR Service Manual page 90

(b) Heating
Press the Auto button continuously for 8 seconds or less than 11 seconds, the air conditioner
starts operation at Heating rated frequency. ("beep" "beep" will be heard at the 8th second.)
2.
Troubleshooting Air Conditioner
Refrigeration cycle system
In order to diagnose malfunctions, make sure that there are no electrical problems before
inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with
the power source, malfunction of a compressor and a fan.
The normal outlet air temperature and pressure of the refrigeration cycle depends on various
conditions, the standard values for them are shown in the table to the right.