Miller Electric 250 Owner's Manual page 44

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A complete Parts List is available at www.MillerWelds.com
Trouble
Low power output at ac receptacles.
High power output at ac receptacles.
Erratic power output at ac receptacles.
C. Engine
Maintenance Display
noFUEL
HI H2O
LO OIL
Trouble
Engine does not crank.
Engine cranks but does not start.
Engine starts but stops when Engine
Control switch S2 returns to Run/Idle
position.
Engine does not stop.
Engine stopped during normal
operation.
OM-217 455 Page 40
Increase Fine control R1 setting to max.
Check fuse F2, and replace if open (see Section 9-5).
Check engine speed, and adjust if necessary (see Section 9-4).
Check fuel level.
Check engine speed, and adjust if necessary (see Section 9-4).
Check receptacle wiring and connections.
Have Factory Authorized Service Agent check brushes and slip rings.
Place Engine Control switch in the Off position, refuel, and start engine.
Coolant temperature is too high. Allow engine to cool and check coolant level (see Section 9-2).
Oil pressure is too low. Allow engine to cool and check oil level (see Section 9-2).
Supplementary protector CB8 may be open (see Section 9-5). Wait and retry.
Check battery voltage.
Check battery connections and tighten if necessary.
Check plug Engine Control switch and engine wiring harness connections.
Have Factory Authorized Service Agent check Engine Control switch S2 or circuit breaker CB8.
Check fuel level and fault indicators on fuel gauge (see Section 6-1).
Open fuel valve (see Section 5-6).
Glow plug circuit breaker CB7 may be open (see Section 9-5). Wait and retry.
Service inline fuel strainer and fuel filter (see Section 8-2).
Check battery and replace if necessary.
Check engine charging system according to engine manual.
Check fuel solenoid according to engine manual.
Have Factory Authorized Service Agent check glow Plug switch S6, glow plug, and control relay CR3.
Check oil level (see Section 5-6) and fault indicators on fuel gauge (see Section 6-1). Engine will not
start if oil pressure is too low.
Check coolant level and fan belt (see Section 5-6 and engine manual), and check fault indicators on
fuel gauge (see Section 6-1). Engine will not start if engine temperature is too high.
Have Factory Authorized Service Agent check low oil pressure shutdown switch S5 and engine tem-
perature switch S4.
Stop engine by closing fuel valve (see Section 5-6). Adjust shutdown solenoid (see Section 9-4).
Check fuel level and fault indicators on fuel gauge (see Section 6-1).
Open fuel valve (see Section 5-6).
Check oil level (see Section 5-6) and fault indicators on fuel gauge (see Section 6-1). Engine will not
start if oil pressure is too low.
Check coolant level and fan belt (see Section 5-6 and engine manual), and check fault indicators on
fuel gauge (see Section 6-1). Engine stops if engine temperature is too high.
Have Factory Authorized Service Agent check low oil pressure shutdown switch S5 and engine tem-
perature switch S4.
Remedy
Action
Remedy