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6-14 l Troubleshooting
Passive Alarms
Problem
P26 Regen RTD Integrity –
If the process RTD is faulty.
P28 Return Air RTD
Integrity Alarm– If the return
air RTD is faulty.
P30 Out of Hopper RTD
Integrity – The dryer continues
to run with a passive alarm.
Possible cause
The connection in the electrical enclo-
sure for the regen RTD is loose.
The connection of the RTD plug on the
control board is loose.
The regen RTD has failed.
The connection in the electrical enclo-
sure for the return air RTD is loose.
The connection of the RTD plug on the
control board is loose.
The connection of the RTD plug on the
control board is loose.
The return air RTD has failed.
Solution
Check the RTD plug connection and
tighten if needed.
Check the plug connection and tighten if
needed.
Replace the regen RTD.
Check the RTD plug connection and
tighten if needed.
Check the plug connection and tighten if
needed.
Check the plug connection and tighten if
needed.
Replace the return air RTD.