FAULT CODE 012, 013, 014 OR 015: OVERHEATING, EXCESSIVE TEMPERATURE AT FLAME SENSOR, POSSIBLE OVERHEATING DETECTED OR TOO MANY OVERHEATS.

TM 9-2320-364-34-1

2-17.1. ARCTIC HEATER (MODEL B) TROUBLESHOOTING (CONT).

3. FAULT CODE 012, 013, 014 OR 015: OVERHEATING, EXCESSIVE

TEMPERATURE AT FLAME SENSOR, POSSIBLE OVERHEATING

DETECTED OR TOO MANY OVERHEATS.

INITIAL SETUP

References

Tools and Special Tools

TM 9-2320-364-10

Tool Kit, General Mechanic's: Automotive

TM 9-2320-364-20

(Item 241, Appendix F)

Equipment Condition

STE/ICE-R (optional) (Item 15, Appendix F)

Engine OFF, (TM 9-2320-364-10)

Multimeter (Item 140, Appendix F)

Parking brake applied, (TM 9-2320-364-10)

Fault Code Retrieval Device (FCRD)

Wheels chocked, (TM 9-2320-364-10)

(Item 60.1, Appendix F)

NOTE

The following steps should only be used if troubleshooting was started at First Chart

For Diagnosis of Arctic Heater Troubleshooting procedure (Para 2-17.1 Fault 1) (all

conditions) and you were referred here.

START

KNOWN INFO

TEST OPTIONS

WARNING

Read WARNING

Continuity test.

Arctic heater coolant level

on Page 2-766.13

STE/ICE-R #91.

checks OK unit level.

Arctic heater coolant hoses and

valves check OK unit level.

REASON FOR QUESTION

Is resistance measured across

If resistance reading is not be-

POSSIBLE PROBLEMS

arctic heater temperature sen-

tween 650 and 1000 ohms at

sor between 650 and 1000

room temperature, arctic heater

Arctic heater temperature sensor

temperature sensor is faulty.

ohms, at room temperature?

faulty.

Arctic heater overheat sensor

faulty.

Arctic heater flame sensor faulty.

Arctic heater coolant pump faulty.

Arctic heater in lockout mode

(fault code 15 active).

Replace arctic heat-

er temperature sen-

sor. Verify repair, go

to Step 4 of

this Fault.

YES

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