Panasonic CS-E7PKR Service Manual page 120

16.4.8 H25 (e-ion Air Purifying System Abnormal)
Malfunction Decision Conditions

During standby of cooling and heating operation, e-ion breakdown occurs and air conditioner stops operation.
Malfunction Caused

Faulty indoor main PCB.

Faulty indoor e-ion power module.
Troubleshooting
120