Midmark M11 - Water Level Sensor: Supply Voltage Test; Water Level Sensor: Continuity Test

English-107
004-1032-00
TP210 Rev. A
© 2012 Midmark Corp. | 60 Vista Drive Versailles, OH 45380 USA | 1-800-643-6275 | 1-937-526-3662 |
[Revised: mo/dd/yr]
Water Level Sensor: Supply Voltage Test
A) Disconnect sensor harness from J8 on PC board.
B) Set meter to ‘20 VDC’
C) Place meter probes on two pins at J8 as shown.
Meter Reading Required Action
acceptable range: 4.0 to 6.0 VDC Main PC board is OK
Perform Continuity Test
any reading out of the
acceptable range
Replace Main PC board
Water Level Sensor - continued
Testing
Service Tip:
Residue build-up on the sensor disk can cause malfunctions during the
Fill mode. Clean the sensor disk with Speed-Clean and an abrasive pad,
then dry disk thoroughly.
Water Level Sensor: Continuity Test
A) Disconnect wire from sensor terminal.
B) Set meter to ‘2K Ω’
C) Place one meter probe on sensor terminal, and the
other probe on the chamber wall as shown.
Meter Reading Required Action
OL Water level sensor is OK
any reading other than OL Replace water level sensor
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Style A