CHASSIS TROUBLESHOOTING - INSUFFICIENT/NO HEAT IN CAB CONTINUED
Remove cab floor plate (TM 5-3805-292-10).
With heat on high, run engine until normal
operating temperature is reached
With engine running, ensure heater hose
coming from electric water valve assembly is
warm on heater core side.
Heater core or hose is plugged. Unplug
With engine running, ensure heater
or replace heater core
hose coming from heater shut-off
valve is warm on heater core side.
Shut down engine (TM 5-3805-292-10).
Disconnect electric water valve
Push power button to turn on machine
Perform Open Harness Test for
power (TM 5-3805-292-10).
Measure voltage between electric
water valve assembly connector HVC2-
A, circuit 001C (R), harness side, and