Perma Pure Baldwin-Series M5A - Manual (Page 13)

13
COPYRIGHT 2009, ALL RIGHTS RESERVED
PERMA PURE LLC
Model M5A User’s Manual
Doc. #580: Revision: 000
Page 13 of 22
Troubleshooting and Maintenance Guide
Symptom
Diagnostic Fix
No LED(s) and no fan. AC power input. Ensure that AC power is
connected.
No LED(s) and fan on. AC input fuse on control board.
DC output fuse on control board.
Replace fuse as necessary.
Replace fuse as necessary.
LED(s) on and no fan. AC input fuse on power supply.
+15vdc TB4 on control board. Replace fuse as necessary.
If not present, replace power
supply.
Impinger remains at
ambient temperature.
Peltier current draw. Should be
above 6 amps when first turned
on.
If unit has two active impingers,
switch Peltier element connections
to other channel
If lower than 6 amps or above 8
amps suspect that Peltier element
has failed.
If problem remains at same
channel, control board defective. If
it changes, Peltier defective
Thermocouple failure LED
is on.
Thermocouple connection TB1, 2. Ensure proper connection to
control board. If connection good,
replace thermocouple.
Impinger frozen and cooler
indicates ambient
temperature.
Thermocouple placement in heat
exchanger block. Ensure proper placement. Replace
thermocouple or control board.
Impinger does not reach
set temperature, but is
below ready temperature.
System loading.
Calibration and Set temperature
adjustment.
Ensure system loading is not
exceeding cooler capacity.
Consult with Perma Pure Tech
Support
Impinger temperature
cycles up and down.
Peltier connections on control
board.
Ensure a firm connection on flag
connectors on control board.
Ensure system loading is not
exceeding cooler capacity.
Ready LED does not come
on when impinger is below
7°C.
Ready temperature adjustment. Consult with Perma Pure Tech
Support.
Water Slip (carryover) in
system.
Impinger temperature. Should be
below 6°C.
Ensure system loading is not
exceeding cooler capacity.
Ambient must not exceed 45°C
(113°F)
Slip LED does not come on
(alarm relay/water slip
option installed).
Water slip sensor connections. Ensure that all water slip sensor
connections are made.
Clean tip of sensor.
Replace alarm relay/water slip
board as needed.