HIGHError Code
A1: PCB Fault (Heat Pump)
Daikin heat pump printed circuit board has detected an internal fault.
What This Error Code Means
The main control board has malfunctioned.
Common Causes
Power surge damage
Component failure on PCB
Moisture on board
Loose connections
Overheating of control board
Affected Brands
DaikinMitsubishiFujitsuLGSamsung
How ROMA Heating Fixes This Error Code
Inspect PCB for visible damage
Check all connections
Test voltage inputs
Replace PCB if internal fault
Verify system operation
Why Choose Our Emergency Service
24/7 Availability
Emergency service available around the clock
Licensed Technicians
TSBC LGA0202903, bonded, Red Seal certified
Same-Visit Repair
We fix error code problems on the first visit
Related Services
Seeing Error Code A1? Don't Wait.
Our emergency technicians can diagnose and fix it right now
Emergency: 778-909-5731