PMT200B SERIES DryLine
®
DEHYDRATOR USER MANUAL
13
Problem/Condition
Solution
Dehydrator display does not light, unit does not run.
If the display light falls to light, make sure the unit is
plugged in and power outlet is operating.
If you still have no light, unplug the unit, remove the unit
cover and check for loose connections. Refer to the wiring
diagram for proper connections. Figure 4 for summary
alarm unit or figure 5 for discrete alarm unit
Check to ensure that proper AC voltage is being supplied
to the input.
Low-pressure alarm activated.
Turn shut-off valve to the off position and observe
pressure gauge. The pressure gauge line should read
approximately 21 kPa (3.0 psig) and the alarm should
clear. If alarm does not clear, remove cover and verify
tubing and wiring connections are secure.
If the pressure does not stay constant after shutting off
the valve, apply leak detector to isolate the leak in the
dehydrator (exercise care when applying solution not to
wet wiring or electronics).
With dehydrator isolated from transmission line, observe
pressure in transmission line. If pressure drops, use a
leak detector solution to locate leaks in the transmission
line. Repair leaks if possible.
If the problem persists contact CommScope Customer
Service. (see section 6.0)
Compressor does not turn.
Check the display on the controller. Toggle the ON/OFF
switch (attached to power connection).
Check input voltage per wiring diagram
If the problem persists contact CommScope Customer
Service. (see section 6.0)
Filter bowls show excessive water.
Ensure that the drain line tubing (exiting the bottom of
the drain solenoid) is not clogged. When the compressor
cycles off, air and moisture should flow out of the drain line
(into drain pan).
If solenoid does not vent, verify proper voltage is present
when compressor is running and absent when compressor
is off.
If proper voltage is present and solenoid does not shift,
replace solenoid. (See section 5 for replacement parts.)
If you experience difficulty with your dehydrator, use the troubleshooting procedures described below.
Caution:
Electrical troubleshooting requires access to potentially dangerous voltages and should only be
performed by a licensed electrician.
