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62-11637
7–36
00081
CHECK FHR CIRCUIT
• ACTIVATION: A problem has been detected in the fuel heater relay coil circuit. If this alarm occurs while
the fuel heater circuit is operating, the circuit is detected shorted. If this alarm occurs while the fuel heater
circuit is not operating, the circuit is detected open.
• UNIT CONTROL: Alarm only.
• RESET CONDITION: Auto reset when the circuit is normal, or Alarm may be manually reset using the dis-
play mounted keys or by turning the unit off, then back on again.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, the active
alarm should clear itself (see reset condition above). Operate the unit through the appropriate modes to see if any
active alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
1.
Check Relay
a. Inspect relay socket and connection pins inside PCM. No damage to relay. No damaged or corroded
connections.
b. Check resistance of coil (terminals 85 & 86). Refer to
2.
Check Power and Wiring
a. Check for power at fuse F10 terminal A inside PCM. Minimum 11 VDC. If not, check PER circuit and
fuse F5. (NOTE: FLS, SATPWR and LB will also be without power.)
b. Check fuses F5 & F10. Verify correct fuse, see
c. Check for power at FHR + terminal. Replace PCM.
d. If the ambient temperature is below 77°F (25°C) the fuel heater relay (FHR) will be grounded by the
main microprocessor at 3MM-17. Power up control system in PC Mode. (Refer to
Check ground from 3MM-17 through PCM-17 to the FHR - connection. If ambient is above 77°F (25°C),
place the SROS in the OFF position and check continuity of the wiring from 3MM-17 through PCM-17
to the FHR - connection. Good ground. If not, check connectors and wiring between terminals. Verify
no damage, moisture or corrosion.
e. Check resistance of heater element. Refer to
00082
CHECK STARTER SOLENOID CIRCUIT
• This alarm may be activated with earlier software revisions, follow procedure for alarm
00084
CHECK REMOTE ALARM LIGHT
• This alarm may be activated with earlier software revisions, follow procedure for alarm
.
Summary of Contents for Transicold X4 7300
Page 21: ...62 11637 1 6 1 3 SAFETY DECALS ...
Page 22: ...1 7 62 11637 62 03958 ...
Page 23: ...62 11637 1 8 ...
Page 24: ...1 9 62 11637 ...
Page 119: ...62 11637 SECTION 6 MESSAGECENTER PARAGRAPH NUMBER Page 6 1 MESSAGECENTER MESSAGES 6 1 ...
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