Truma Combi - Page 14

The Blue Pages: 120VAC
Component Measuring points Function/Setpoint Remark
Input fuse F4 Continuity test on
removed fuse
Continuity (0 Ω) If no continuity,
replace fuse
Component Measuring points Function/Setpoint Remark
120 V supply cable L3 Voltage measurement between
N and L
120 V voltage If no voltage is measured,
check supply cable
Cable harness connector
Temperature limiter X4
(Left side)
Voltage measurement between
N and L
120 V voltage If no voltage is measured,
check fuse
Cable harness connector
Temperature limiter X4
(Right side)
Voltage measurement between
N and L
120 V voltage If no voltage is measured,
check temperature limiter
Cable harness, heating
elements X2
Voltage measurement
X2-1 and X2-3
120 V voltage or
60 V voltage (depending on
power setting)
If no voltage is measured,
check power electronics
Cable harness, heating
elements X2
Voltage measurement
X2-2 and X2-4
120 V voltage or
60 V voltage (depending on
power setting)
If no voltage is measured,
check power electronics
Continuity
Voltage: Measured
F4
X2
X1
S
• X1: Cable harness connector 12VDC/120VAC
(Connection to 12VDC electronics)
• X2: Cable Harness connector, heating elements
• L3: Connector for 120VAC supply cable
• F4: Input fuse, 10AT
• S: Safety circuit connector
L3