Repair
20 311512A
Fluid Temperature Sensor (FTS)
Check FTS operation by connecting directly to Reactor.
FTS Cable Test
1. Disconnect FTS cable (SS) at Reactor.
2. Test with ohmmeter between pins of cable
connector.
3. If cable fails test, retest at FTS.
FTS Test
1. Turn Main Disconnect Switch OFF. Disconnect
power supply cord.
2. Relieve pressure; see page 7.
3. Remove tape and protective covering from FTS.
Disconnect hose cable. Test with ohmmeter
between pins of cable connector.
4. If FTS fails test, replace FTS.
An alternating hose controller display of SbEr and
H0.00 indicates a loss of signal from the FTS. Two
conditions must be satisfied for proper FTS
operation:
• The sensor must be functional
• The signal must travel uninterrupted from the
sensor to the control unit
Pins Result
1 to 2 Approximately 35 ohms per 50 ft
(15.2 m) of hose, plus approximately
10 ohms for FTS
1 to 3 Infinity
SS
ti8444a
Pins Result
1 to 2 Approximately 35 ohms per 50 ft
(15.2 m) of hose, plus approximately
10 ohms for FTS
1 to 3 Infinity
3 to FTS ground
screw
0 ohms
1 to FTS com-
ponent A fitting
(ISO)
Infinity