Check 4】 Resistance Of Thermistor; Check 5】 Resistance Of Control Assy; Check 6】 Compressor Rated Current - SAWAFUJI ELECTRIC Engel MT17F-U1 Service Manual

6. CHECK POINT ＆ CHECK METHOD
【Check 4】 Resistance of Thermistor. （Fig.4)
◇ Checking points
Remove the two pin couplers from power supply, and test.
Test result
Approx. 2 kΩ - 10 kΩ
∞Ω
0Ω
WORK TIPS
・When short circuit, motor runs continuously.
【Check 5】 Resistance of Control Assy. (Fig.5)
◇ Check point.
Remove six pin coupler.
Check the resistance at between terminals brown and
black.
Test result
Dial position OFF - 5
Approx. 17kΩ - 5kΩ
∞Ω
0Ω
【Check 6】 Compressor Rated Current. （Fig.6)
◇Checking point
Current value measurement with clamp meter between
input cord terminals.
WORK TIPS
To measure the rated current of the compressor,
please measure after 15 minutes or more after
starting the refrigerator.
Test result
Approx. 1.5 - 2.0A
Higher than 2.0A
Lower than 1.5A
Judge
Normal
Broken
Short Circuit
Assessment
Normal
Broken
Short circuit
Judge
Normal
Compressor is locked, or
contaminated.
Gas is leaking.
POWER SUPPLY
Fig.4
Fig.5 POWER SUPPLY
BLACK
Fig.6
11
BROWN
CONTROL ASSY