User Guide

Field Service Checklist
25
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Observed Problem: Possible Cause: Remedy:
K.
Process
temperature display
reads “Low”.
1. Discharge air
temperature too
low.
1. Raise discharge
air temperature to
greater than 60ºF.
L.
Control inoperable;
display reads
“Ready...”
1. Bad cable
connection
between dial and
amplier.
1. Remove power.
Disconnect and
reconnect cable
securely. Restore
power.
If “Ready...”
remains, replace
or consult Maxitrol
Company.
2. Dial cable
disconnected and
reconnected with
system powered.
2. Remove and
restore power.
If “Ready...”
remains, replace
or consult Maxitrol
Company.
3. Incorrect cable. 3. Insure cable type
is correct. Replace
with correct cable if
necessary.
4. Loss of program. 4. Perform Remedy
for Possible Cause
1 and 3 above.
If “Ready...”
remains, replace
or consult Maxitrol
Company.