CONTENTS
Chapter 8
Troubleshooting Based on Observed Symptoms
8-1
8-2
8-3
Refrigerant Control Problems ............................................................................................................. 10
8-4
8-5
8-6
8-7
8-8
8-9
8-10 Control Circuit ...................................................................................................................................... 45
8-14 4250 Troubleshooting .......................................................................................................................... 74
9-1
Service Overview.................................................................................................................................... 1
9-2
9-3
9-4
Chapter 10 LED Status Indicators on the Outdoor Unit Circuit Board
10-1 LED Status Indicators ............................................................................................................................ 1
10-2 LED Status Indicators Table.................................................................................................................. 4
HWE21030 GB