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Hach 205 - Page 14

Hach 205
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14
3/ confirm proper sensor location and operation.
4/ look for leaks in the chamber or around the door
gasket.
5/ assure there is ample room around the unit as
described in Installation section 2.2
6/ adjust calibration on controller, see section 4.5
7/ compare ambient specifications to Unit
specifications in section 7.
8/ If 1 through 7 has been tried and still not
functioning correctly, call customer service.
If compressor isn’t running:
9/ confirm that compressor cooling fan motor is
operable.
10 / check if motor has voltage to it.
11/ see if refrigeration is running too hot , factory set
high-limit may have shut down the compressor:
a- dirty coil or poor circulation
b- coil next to heat source
c- ambient temperature too high
Ice build up in chamber
1/ Search for leak in door gasket.
2/ door being opened too often.
3/ open container/loose seal on bottles
4/ see section 5.4 for defrost instruction
Making noise
1/ assure that fan is not miss-aligned.
2/ Steady internal clicking may be broken spring or
valve – call Customer Service.
MECHANICAL
Motor doesn't move
1/ if shaft spins freely: check connections to motor
and check voltage to motor.
2/ if shaft rubs or is frozen, relieve binding and
retest.
Motor makes noise
1/ If noise is from the motor, tap the top of motor
shaft with ball peen hammer.
2/ If the sound gets worse, tap the other end of the
shaft - avoiding touching the fan blade.
3/ If there is no change, call Customer Service.
Door not sealing
1/ Confirm that unit has not been damaged and
body is square.
2/ Check to see that door gasket is in place and not
damaged.
Water leaking
1/ If leaking inside: dry chamber, run at temperature
with door open. Check all seams with flashlight
including front face.

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