Inspecting The Fuel Control System - Daikin GYEQ20AN Service Manual

Inspecting the Outdoor Unit
1.3

Inspecting the Fuel Control System

Parts to inspect
Inspect the gas solenoid valves by measuring the resistance between their terminals.
Between gas solenoid valve terminals
173
Output voltage
Measuring points
Gas solenoid Between main circuit board's
valve 1 CN9-1 and -4
Gas solenoid Between main circuit board's
valve 2 CN9-3 and -5
Inspecting the gas solenoid valves
Measuring points
During system While system running
stop (with actuator check ON)
0 V
0 V
Measured value
16.7 Ω
SiAUY361411EA
CH03
12 V DC
CH04
12 V DC
Parts Inspection