Wireless Controller (EP1 or EP2) 60Hz
Power Unit Not Turning On
Replace coaxial cable
Is the lower red LED
light on the receiver
coming on?
Receiver is overheating.
- Check thermal distribution pad above heat sink.
Check incoming power to controller;
Does Line 1 to ground = 110V?
Does Line 2 to ground = 110V?
Does Line 1 to Line 2 = 220V?
EP2 only; verify PRV (grey) and float level (black)
connectors are not reversed.
Is the contactor closing?
(contactor override being
drawn in)
Is the reset/thermal
overload on motor tripped?
Check wires and connections in
wiring box on motor for tightness
Does Line 1 to ground = 110V?
Does Line 2 to ground = 110V?
Does Line 1 to Line 2 = 220V?
Reset overload. Discuss
ventilation with CS representative.
Does reset/overload have power out to motor?
Does load side of reset/overload terminal to
ground = 110V?
Replace overload switch
Faulty wire connection or breaker on
line side OR contactor no longer
closed. Have electrician check.
Replace motor
N
Y
Y
Y
N
N
Y
N
If still no current, verify wiring of entire
controller using diagram on controller lid.
AND
Check incoming power to controller;
Does Line 1 to ground = 110V?
Does Line 2 to ground = 110V?
Does Line 1 to Line 2 = 220V?
Faulty wire connection or
breaker on line side.
Have electrician check.
N
Y
N
Replace receiver
and reprogram
remotes (see
instructions on last
page of this
flowchart)
Y
