Engel MT45F-U1D-P - 6 Check Point ＆ Check Method; Check 1】 Special Fuse & Blade Fuse; Check 2】 AC Output Voltage from Power Supply to Compressor; Check 3】 Check the Resistance at the Coil if Compressor

【Check 1】 Special Fuse & Blade Fuse. (Fig.1)
◇ Check the resistance of special fuse by tester.
Test result Judge
0Ω Normal
∞Ω Broken
◇ Check the blade fuse.
The blade fuse is in the power supply.
To remove the blade fuse, please remove the power supply.
【Check 2】 AC output voltage from power supply to compressor. (Fig.2)
◇ Checking point
Check at two pin coupler of power supply. (Fig.2)
Test result Judge
Approx. AC14 - 18V Normal
AC 0 V
Approx. AC14V or lower
【Check 3】 Check the Resistance at the Coil if Compressor.（Fig.3)
◇ Checking points
Remove two pin coupler at motor cord, and check.
(at25℃)
Test result Judge
Approx. 1.7 Ω Normal
∞Ω Disconnection of compressor coil
0Ω Coil of compressor is short circuit
Power Supply is broken
6. CHECK POINT ＆ CHECK METHOD
13
・Please attach attention to the special fuse of
orientation.
・It can not detect the temperature is in the wrong
special fuse orientation. （※）
Fig.2
POWER SUPPLY
Fig.3
POWER SUPPLY
WORK TIPS
Fig.1
DC CORD
SPECIAL FUSE
BLADE FUSE (10A)