RF Baghouse, Models RFT, RFW, and RFWH
40
Problem
Probable Cause
Remedy
Pulse cleaning never
stops
Pressure switch not wired to the
timer board correctly
Connect the pressure switch on the timer board
to Terminals 7 and 8 on TB3 on the Torit Delta P
Controller (if used).
Pressure switch terminals on
the timer board jumpered
Remove jumper wire on Solid-State Timer board
before wiring to the timer.
High Pressure On or Low
Pressure Off setpoint not
adjusted for system conditions
Adjust setpoints to current conditions.
Pressure tubing disconnected,
ruptured, plugged, or kinked
Check tubing for kinks, breaks, contamination, or
loose connections.
Alarm light is ON
Alarm setpoint too low
Adjust to a higher value.
Excess pressure drop
Check cleaning system and compressed air supply.
Replace filters if filters do not clean down.
Pressure tubing disconnected,
ruptured, plugged, or kinked
Check tubing for kinks, breaks, contamination, or
loose connections.
Cleaning light is ON,
but cleaning system not
functioning
Improper wiring
Check wiring between the timer board and between
the timer board and solenoid valve coils.
Defective solenoids
Check all solenoid coils for proper operation.
Timer board not powered
Check power ON light on timer board's LED display.
If not illuminated, check the supply voltage to the
timer board. Check the fuse on the timer board.
Replace if necessary.
Timer board defective
If LED is illuminated, observe the output display.
Install a temporary jumper across the pressure
switch terminals. Output levels should flash in
sequence. Check output using a multimeter set to
150-Volt AC range. Measure from SOL COM to a
solenoid output. The needle will deflect when LED
flashes for that output if voltage is present. If LED's
do not flash, or if no voltage is present at output
terminals during flash, replace the board.
Drive manifold not
rotating
Misaligned or broken chain.
Worn drive bushing.
Check drive chain and tensioner for proper
alignment/tension. If chain is broken, remove and
check manually. Check rotation for binding and
alignment as explained in Preliminary Start-Up
Check.
