User Guide

6
©2017 ZONEFIRST®
TROUBLESHOOTING
The H32P is a very simple control to troubleshoot, especially
with the LED indicators. The only other device needed is a
simple Volt/Ohm meter. Almost all problems can be traced to
an external component or wiring to the H32P. The following
procedures can help isolate the problem.
Zone(s) Not Calling
Each zone has a Green LED next to the zone relay when it is
calling and that calling is being recognized by the H32P. If a
zone is supposed to be calling and the Zone LED is not on,
check for 24VAC across the thermostat terminal C and the Y,
if a Cool call, W if a Heat Call, or G if a Fan call. If there is no
voltage here at the panel the panel is not getting the signal from
the thermostat. The problem is mis-wiring, a broken wire or a
problem in the thermostat. To check the zone on the panel,
place jumper from R to Y, R to W or R to G to see that the
panel is operating properly.
Zone(s) Will Not Shut Off
If a zone will not stop calling, the Zone LED should still be on.
Depending on the call disconnect the Y, W or G wire from the
terminal strip. The zone will drop out. Check the thermostat
wiring for a mis-wiring or short that keeps the zone calling.
Damper Motor Checkout
To checkout the dampers, the panel has a GREEN LED for
each zone. This illuminates when the dampers are to be
OPEN, either on a call or when all zones are satisfied. The
damper position is confirmed by the bi-color LED on the
motor. When the panel is Green, the motor LED must be
Green also indicating the damper being open. When the panel
LED is not lit the motor should be closed and this is confirmed
by the damper LED being Red.
Wiring Diagram
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