Paloma PH2-20R DVSN, Engineering Handbook

Page: 86 / 172

86 | Page SVC 820 Tankless Gas Trouble Shooting Manual
86
79 – Error Code
Explanation: Blower Motor current fault. The unit
detected a fault with the Blower Motor.
Diagnostic Checks:
•
Blower Motor
BLOWER MOTOR DIAGNOSTICS :
Locate Min & Max buttons on Control Board.
Continue to diagnostic chart on next page.
Turn power OFF. Remove 3 screws for Control Board
mounting bracket. Remove connectors “M”, “T” &
“G”. Pull Control Board out of way to access Blower
Motor.
Turn power OFF. Remove and reinsert connector “G”
on Control Board. Attempt to operate unit again. IF
79 Error Code does NOT display, unit had a loose
connection.
Remove 3 screws holding Blower Motor in place.
Clean Blower Motor and reassemble unit. Attempt to
operate unit again. IF 79 Error Code does NOT
display: Blower Motor needed to be cleaned.
1 2
4
3
Screws
Blower Motor
Control Board
Bottom of Unit