62-11389
7
−
27
Alarm
NO.
Steps
Alarm/Cause
Corrective Action
36
CHECK COOLANT TEMPERATURE
•
TRIGGER–ON: Coolant temperature is below 32
°
F (0
°
C) after the engine has been running for 5
minutes.
•
UNIT CONTROL:
Engine Operation: alarm only.
Standby Operation: this alarm will not activate in standby Operation.
•
RESET CONDITION: Auto reset when coolant temperature is higher than 36
°
F (2.2
°
C) or alarm may
be manually reset via keypad 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, clear the
alarm(s). (See Note 1 page 7
−
2.) Operate the unit through the appropriate modes to see if any active alarm
occurs. Continue with the steps below as necessary.
1
Check Coolant Temperature
Check temperature of coolant or
upper radiator hose
Must be above 32
°
F (0
°
C)
2
Check Engine Coolant Sensor
a. Check resistance of engine
coolant sensor (See Note 3 page
7
−
2.)
Refer to Section 8.9.10
b. Check
harness and control box
connector pins and terminals. (See
wiring schematic Section 10.)
No physical damage to harness
No damage, moisture, or corrosion in connectors.
c. Check voltage at harness
connection to ENCT.
Must be 2.5
$
0.5 VDC. This verifies microprocessor
output and wiring to sensor.
