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Alarm Codes and Troubleshooting
Alarm
Code
Alarm Problem
V4MX
High DC Voltage
V1MX
Low DC Voltage
12
Cause
Faulty DC power supply.
Faulty DC power supply.
Broken Temperature Control
Module.
Solution
Measure that DC supply
output is 24V. If not,
replace supply.
Measure that DC supply
output is 24V. If not,
replace supply.
If DC supply is supplying
24V when disconnected
from system, check which
module is causing the
short. Check this by con
necting one module at a
time and then measuring
for 24V.
Clear Alarm
Cleared from Heat Run
screen. See Appendix -
User Interface Display,
page 19.
Cleared from Heat Run
screen. See Appendix -
User Interface Display,
page 19.
3A0100H
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