Blue Star P4 Error Code
DC Bus-Bar High/Low Voltage Protection.
ac · BO-5CNHW12QATU/QATX, BO-5CNHW18QATU/QATX
DC Bus-Bar High/Low Voltage Protection
Cause: DC bus voltage out of range on outdoor PCB
How to fix: Check PFC circuit, bus capacitor, and rectifier diodes on outdoor PCB.
Blue Star boards that may fix P4
If the board is the cause, these refurbished Blue Star boards are in stock. Match the part number before you order.
Bluestar F35BS 1 Ton Outdoor PCB
From ₹2,400
GET PRICE →
Bluestar MIV50BS 1.5 Ton Inverter PCB
From ₹2,500
GET PRICE →
Bluestar Godrej GRJ554-A V1 2013
From ₹2,500
GET PRICE →
Bluestar Godrej GRJ519-A3 V1 Non Inverter PCB
GET PRICE →