PEC Plus user manual Appendix B: Troubleshooting
31040003 81
Incorrect wiring Correct the wiring. For more
information, read the appropriate
installation section.
The relay is configured as OFF. Configure the relay properly. For
more information, read
Configuring
relays starting
on page 34.
The set point is incorrect Adjust the setting. For more
information, read the appropriate
programming section.
The relay is configured as cool
for a heater.
Change the configuration for the
relay to heat. For more information,
read the
on page 37.
The relay is configured as heat
for a fan.
Change the configuration for the
relay to cool.
No power to the load Switch on the power.
Faulty equipment Replace the equipment.
Circuit breaker open Reset the breaker.
Relay does not switch load
on
Blown relay
Solve the problem that caused the
relay to blow and then replace the
circuit board or use a different relay.
Relay does not switch load
off
The relay is configured as ON. Configure the relay properly. For
more information, read
Configuring
relays starting
on page 34.
Curtain opens when it
should close or closes
when it should open
Incorrect wiring, the close and
open wires are reversed.
Correct the wiring. For more
information, read
Connecting
curtain machines
on page 18
Alarm relay not operating
alarm system
Incorrect wiring Correct the wiring. For more
information, read
Connecting an
alarm system
on page 21
The heater set points are too
close together with variable
speed fans.
Adjust the hysteresis setting.
Move the temperature probe closer
to the heater.
Widen the set points.
The heater is too large for the
room
Replace the heater with a smaller
output unit.
Staged heater cycles on
and off
The stage is set up as a duty
cycle
Remove the duty cycle from the
stage’s settings
To Next Page
Loading...
