FDI P2131, Technical Manual, Page: 74 / 161

ALARM
CODE
POSSIBLE CAUSES CORRECTIVE ACTION
21
Temperature
Sensor
Large RTD
deviation,
RTD or RTD
transmitter failure
Contact a qualified maintenance technician to inspect RTD
and RTD transmitter for physical damage, loose wires,
broken communication cable to PLC.
Compare RTD ‐ 1 versus RTD ‐ 2 on “STATUS” screen.
Replace as needed.
22
High
Exposure
Temperature
RTD or RTD
transmitter failure
Faulty steam trap
Condensate drain
screen plugged
Sterilizer not tilted
correctly
Solid state heater
relays leaking
current
Contact a qualified maintenance technician to inspect RTD
and RTD transmitter for physical damage, loose wires,
broken communication cable to PLC.
Compare temperature versus pressure on STATUS SCREEN.
Replace as needed.
Ensure trap is working properly. If steam trap is failed
closed, condensate will pool in chamber. If steam trap fails
open, steam will flow to WRS water tank and make loud
popping noise or use more water than normal.
Replace as needed.
Remove, clean, and replace screen.
Verify correct tilt. Water should drain easily to front
chamber drain.
Contact a qualified maintenance technician to test relay for
leakage and replace as needed.
23
Jacket
Sensor
Jacket pressure
transmitter failure
Contact a qualified maintenance technician to inspect and
replace transmitter.
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