Install Instructions

Problem:
1. Failure to Operate
a. Cause: No voltage is being supplied to the probe
control.
Test: Using a voltage meter, verify that voltage
is being sent to wire (H) and (N) of the
probe control.
Solution: If no voltage is being supplied, make nec-
essary electrical modifications.
If voltage is supplied to the probe control
but not the probe, verify that the electrical
wiring connections are correct according
to the instructions, pages 4–8.
If these solutions do not resolve the prob-
lem, replace the probe control.
b. Cause: The probe end is making contact
with the boiler or pipe wall.
Test: Remove the probe control. Using a ruler,
verify that a 2" (51mm) minimum width in
the boiler section or 14" (32mm) pipe
inner diameter is provided for probe
installation and operation.
Solution: Install the probe control where a
2" (51mm) width in the boiler section or
14" (32mm) pipe inner diameter exists.
Refer to Step 2 on page 3.
c. Cause: Teflon
®
tape was used on the probe.
Test: Remove the probe control and inspect
probe threads.
Solution: Remove Teflon
®
tape. Apply pipe sealing
compound on the probe threads.
d. Cause: Air Pocket Surrounding Probe.
Solution: Remove the probe control, purge air from
the system by opening the water feed
valve until water flows from the tapping.
Reinstall the probe control and shut off
the water feed valve.
e. Cause: Other system electrical wiring and/or
operating control problems.
Solution: Determine cause and resolve
problems.
TROUBLESHOOTING
MAINTENANCE
SCHEDULE:
• Test the low water cut-off annually or more frequently.
• Remove and inspect the self-cleaning probe every 5 years.
• Replace probe every 10 years.
• Replace the low water cut-off every 15 years.
McDonnell & Miller
8200 N. Austin Ave.
Morton Grove, IL 60053
tel: [phone]
fax: [phone]
www.mcdonnellmiller.com
McDonnell & Miller
©2006 ITT Corporation
Printed in U.S.A. 10-06 210408