Reactor Error Code Trouble Shooting Guide
Rev 2.6 (02/2014) Page 41
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E31: Reversing Switch Failure/High Cycle Rate (H-Series Only)
Exceeded 65 cpm H-40, H-50, H-XP3
Exceeded 30 cpm H-25, H-XP2
Causes:
1) Too large a flow rate
o mix chamber too large for system selected
o Fluid pressure too high for mix chamber and system selected.
2) Bad reversing switch/rocker arm assembly
o Check N.O., N.C. contacts on J5 of motor control board.
P3, Black, 1170, N.C.
P2, red, 1160, N.O.
P1, green, 1150, COM
Green LED D19 and green LED D20 light alternately with switch input.
3) Bad connection J5 of motor control board.
o Pull, clean and re-seat input wire connector to J5.
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E32: Motor Control Heat Sink Over Temperature
Cause:
o The control board has an on-board temperature sensor. Motor is turned off if the board
temperature exceeds 185°F (85°C) to prevent damage to the circuit board. (See also High
Motor Temp section under E27).
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