Troubleshooting
Problem
Cause
Solution
Engine Coolant Loop
Radiator fan does not shut off.
Check fan relay. Check fan wiring.
Radiator core becoming plugged.
Replace radiator. See
Remove Radiator, page 84
.
Engine coolant does not reach full
temperature.
Engine thermostat not opening.
Replace engine thermostat.
Coolant level is low in expansion
bottle.
No coolant flow in engine coolant
loop.
Refill Engine Coolant Loop, page
52
.
Engine temperature normal, but
heat exchanger temperature is low
or slowlyincreases.
Heat exchanger in the engine
coolant loop is plugged.
Replace heat exchanger. See
Replace Heat Exchangers, page
74
.
Expansion bottle levels are not
rising when coolant is heating.
Radiator or heat exchanger bottle
cap not opening.
Replace cap.
Expansion bottle cap and radiator
cap are switched.
Switch radiator caps. Radiator cap
is marked 16 lbs and expansion
bottle is marked 8 lbs.
Coolant level in engine coolant
expansion bottle rises too high
and too fast.
Spring loaded gasket inside
radiator cap does not seal.
Replace radiator cap.
Coolant level in proportioner
coolant expansion bottle does not
rise when hot.
Expansion bottle cap and radiator
cap are switched.
Switch radiator caps. Radiator cap
is marked 16 lbs and expansion
bottle is marked 8 lbs.
Coolant level in proportioner
coolant expansion bottle rises too
high and too fast.
Expansion bottle cap stuck open.
Replace expansion bottle cap.
Coolant level dropping in overflow
bottle but no visible leaks.
Cap not fullytightened.
Push down and tighten cap past
safetylatch position.
32
3A1706K
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Summary of Contents for Reactor E-30i
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